Mobile terminal, electronic device having mobile terminal and method for controlling electronic device

ABSTRACT

An embodiment relates to an electronic device which comprises a case and a mobile terminal comprising a terminal body. A connection port provided on one side of the terminal body, a controller and a first display part the electronic device comprising: a second display part for displaying a game executed in the mobile terminal; and a wiring part for electrically connecting a first body and a second body. Wherein the controller controls the first display part and second display part, such that an integrated display part comprising the first display part and second display part is formed, and divides a first image such that the first image displayed on the first display part is displayed on the integrated display part in a divided manner, the first image comprises a first sub-image and a second sub-image, and the first image and second sub-image comprise images overlapping each other.

TECHNICAL FIELD

The present disclosure relates to a mobile terminal, an electronicdevice having a case to which the mobile terminal is coupled, and amethod of controlling the electronic device.

BACKGROUND ART

Terminals may be divided into mobile/portable terminals and stationaryterminals according to their mobility. Furthermore, mobile terminals maybe divided into handheld terminals and vehicle mounted terminalsaccording to whether or not it can be directly carried by a user.

The functions of mobile terminals have been diversified. For example,the functions may include data and voice communication, photographingand video shooting through a camera, voice recording, playing a musicfile through a speaker system, and displaying an image or video on adisplay. Some terminals further include an electronic game play functionor perform a multimedia player function. In particular, in recent years,mobile terminals may receive multicast signals that provide visualcontent such as broadcast, video or television programs.

As it becomes multifunctional, for example, such a terminal is allowedto capture still images or moving images, play music or video files,play games, receive broadcast and the like, so as to be implemented asan integrated multimedia player. Meanwhile, in recent years, there is atrend to further expand the usability of a mobile terminal together withan external device interworking with the mobile terminal.

These terminals are operated by adopting the Android Operating System,but there is a problem in that a technology for integrating multipledisplays is not supported by the Android OS, and only two displays withthe same resolution can be integrated into a screen by a terminalmanufacturer.

In addition, when two screens are integrated, there is a problem in thata combined screen thereof is clipped due to a physical distance betweentwo displays.

DISCLOSURE OF INVENTION Technical Problem

An aspect of the present disclosure is to provide a mobile terminalcapable of extending a display area of a mobile terminal through a casehaving an additional display interworking with the mobile terminal, andan electronic device having a case to which the mobile terminal iscoupled.

Furthermore, an embodiment is to provide an electronic device and acontrol method capable of controlling a display provided in a casethrough wired communication to allow compatibility with various modelsand eliminate the need for a separate chip for communication.

In addition, an embodiment is to provide an electronic device and acontrol method thereof capable of outputting one application through aplurality of screens using an extended display area interworking throughwired communication.

Moreover, an embodiment provides an electronic device and a controlmethod thereof capable of integrating two displays having differenthardware specifications to display them on a single display.

Besides, an embodiment is to overcome a clipping phenomenon that occursdue to a physical distance between the two displays when the screens areintegrated.

Solution to Problem

According to an embodiment, there is provided an electronic deviceincluding a mobile terminal and a case, wherein the mobile terminal ofthe electronic device includes a terminal body coupled to the case, aconnection port provided on one side of the terminal body, a controller,and a first display, the case includes a first body accommodating theterminal body, a connector protruding toward an inner side of the firstbody to be inserted into the connection port, a second displaydisplaying a game executed in the mobile terminal, and a wiring portionconfigured to electrically connect the first body and the second body,the controller controls the first display and the second display todefine an integrated display comprising the first display and the seconddisplay, and divides a first image displayed on the first display todisplay the first image on the integrated display, and the divided firstimage includes a first sub-image and a second sub-image, and the firstsub-image and the second sub-image comprises an overlapping area, andthe overlapping area is part of the first sub-image.

Furthermore, in the electronic device according to an embodiment,causing the controller to divide the first image may be causing thecontroller to set a predetermined dividing line on the first image, toset part of the first sub-image area as the overlapping area based onthe dividing line, and to divide the first image such that theoverlapping area is included in both the first sub-image and the secondsub-image.

Furthermore, in the electronic device according to an embodiment, thecontroller may further set part of the first sub-image area as theoverlapping area in a first direction based on the dividing line, anddivide the first image such that the overlapping area is included inboth the first sub-image and the second sub-image.

Furthermore, in the electronic device according to an embodiment, thefirst image may be an image corresponding to an application executed onthe first display, and when the application supports the integrateddisplay, the controller may further display an integration dot in apredetermined area of the first display, and define the integrateddisplay according to a first touch corresponding to the integration dot.

Furthermore, in the electronic device according to an embodiment, thecontroller may further add a width of the first display and a width ofthe second display to calculate a width of the integrated display, andto calculate a smaller one between the width of the first display andthe width of the second display as a height of the integrated display soas to calculate a size of the integrated display.

Furthermore, in the electronic device according to an embodiment, thecontroller may further control the integrated display to display thefirst sub-image and the second sub-image in response to a layout of theapplication, and the layout may be changed according to the calculatedsize of the integrated display.

Furthermore, in the electronic device according to an embodiment,causing the controller to control the first display and the seconddisplay so as to define the integrated display may be causing thecontroller to change the size of the first display according to thecalculated size of the integrated display and to change the size of thesecond display such that the size of the first display is the same asthat of the second display.

Furthermore, in the electronic device according to an embodiment,causing the controller to change the size of the second display suchthat the size of the first display is the same as that of the seconddisplay may be causing the controller to change a flag of the seconddisplay to be the same as that of the first display.

Furthermore, in the electronic device according to an embodiment, thecontroller may further display the first image on the integrateddisplay, and then end the defined integrated display according to asecond touch corresponding to the integration dot.

Furthermore, in the electronic device according to an embodiment, thefirst touch and the second touch may be either one of a swipe or a touchand drag in a direction toward the second display.

According to another embodiment of the present disclosure, there isprovided a method of controlling an electronic device including a mobileterminal and a case, the mobile terminal including a terminal bodycoupled to the case, a connection port provided on one side of theterminal body, a controller, and a first display, the case including afirst body accommodating the terminal body, a connector protrudingtoward an inside of the first body to be inserted into the connectionport, a second display displaying a game executed in the mobileterminal, and a wiring portion configured to electrically connect thefirst body and the second body, wherein the method includes controlling,by the controller, the first display and the second display to define anintegrated display comprising the first display and the second display;and dividing a first image displayed on the first display to display thefirst image on the integrated display, and the divided first imageincludes a first sub-image and a second sub-image, and the firstsub-image and the second sub-image include an overlapping area, and theoverlapping area is part of the first sub-image.

Furthermore, in the control method of the electronic device according toanother embodiment of the present disclosure, the dividing, by thecontroller, a first image displayed on the first display to display thefirst image on the integrated display may include setting, by thecontroller, a predetermined dividing line on the first image and settingpart of the first sub-image area as the overlapping area based on thedividing line; and dividing, by the controller, the first image suchthat the overlapping area is included in both the first sub-image andthe second sub-image.

Furthermore, in the control method of the electronic device according toanother embodiment of the present disclosure, the setting, by thecontroller, a predetermined dividing line on the first image and settingpart of the first sub-image area as the overlapping area based on thedividing line may be setting, by the controller, part of the firstsub-image area as the overlapping area in a first direction based on thedividing line.

Furthermore, in the control method of the electronic device according toanother embodiment of the present disclosure, the first image may be animage corresponding to an application executed on the first display,wherein the control method of the electronic device further includesdisplaying, by the controller, an integration dot on a predeterminedarea of the first display when the application supports the integrateddisplay; and defining, by the controller, the integrated displayaccording to a first touch corresponding to the integration dot.

Furthermore, in the control method of the electronic device according toanother embodiment of the present disclosure, the method may furtherinclude adding a width of the first display and a width of the seconddisplay to calculate a width of the integrated display, and to calculatea smaller one between the width of the first display and the width ofthe second display as a height of the integrated display so as tocalculate a size of the integrated display.

Furthermore, in the control method of the electronic device according toanother embodiment of the present disclosure, the method may furtherinclude controlling the integrated display such that the first sub-imageand the second sub-image are displayed in response to a layout of theapplication, wherein the layout is changed according to the calculatedsize of the integrated display.

Furthermore, in the control method of the electronic device according toanother embodiment of the present disclosure, the controlling, by thecontroller, the first display and the second display to define theintegrated display may include changing, by the controller, a size ofthe first display according to the calculated size of the integrateddisplay; and changing a size of the second display such that the size ofthe first display is the same as that of the second display.

Furthermore, in the control method of the electronic device according toanother embodiment of the present disclosure, the changing, by thecontroller, a size of the second display such that the size of the firstdisplay may be the same as that of the second display is changing, bythe controller, a flag of the second display to be the same as that ofthe first display.

Furthermore, in the control method of the electronic device according toanother embodiment of the present disclosure, the method may furtherinclude displaying the first image on the integrated display, and thenending the defined integrated display according to a second touchcorresponding to the integration dot.

Furthermore, in the control method of the electronic device according toanother embodiment of the present disclosure, the first touch and thesecond touch may be either one of a swipe or a touch and drag in adirection toward the second display.

Advantageous Effects of Invention

As described above, according to a mobile terminal and an electronicdevice having the mobile terminal according to the present disclosure,there is an effect that two displays having different hardwarespecifications can be integrated and displayed on a single display.

In addition, according to a mobile terminal and an electronic devicehaving the mobile terminal according to the present disclosure, there isan effect of overcoming a clipping phenomenon that occurs due to aphysical distance between the two displays when screens thereof areintegrated.

BRIEF DESCRIPTION OF DRAWINGS

FIGS. 1A and 1B are conceptual views for explaining an electronic deviceaccording to the present disclosure.

FIGS. 2A, 2B, 2C, and 2D are conceptual views for explaining a mainstructure of an electronic device according to the present disclosure.

FIGS. 3A, 3B and 3C are conceptual views for explaining an example of amobile terminal related to the present disclosure.

FIG. 4 is a block diagram for explaining a control method between amobile terminal and a display provided in a case in an electronic deviceaccording to the present disclosure.

FIG. 5 is a flowchart for explaining a control method between a mobileterminal and a display provided in a case in an electronic deviceaccording to the present disclosure.

FIGS. 6A, 6B, 6C, and 6D are conceptual views for explaining controlbetween displays and a memory control method based thereon according tothe present disclosure.

FIG. 7 is a flowchart showing a method of causing a controller togenerate an integrated display according to an embodiment.

FIG. 8A is a view showing a first display and a second display prior togenerating an integrated display.

FIG. 8B is a view showing an integrated display.

FIG. 9A is a screen in a landscape mode in an integrated displayaccording to an embodiment.

FIG. 9B is a screen in a portrait mode in an integrated displayaccording to another embodiment.

MODE FOR THE INVENTION

Hereinafter, FIGS. 1A and 1B are conceptual views for explaining anelectronic device according to the present disclosure.

Referring to the drawings, a mobile terminal 100 is coupled to a case200, and the mobile terminal 100 and the case 200 are coupled toconstitute one electronic device 300.

In this case, the mobile terminal may be implemented using a variety ofdifferent types of terminals. Examples of such terminals includecellular phones, smart phones, laptop computers, digital broadcastterminals, personal digital assistants (PDAs), portable multimediaplayers (PMPs), navigators, slate PCs, tablet PCs, ultra-books, wearabledevices (for example, smart watches, smart glasses, head mounteddisplays (HMDs)), and the like. Details of the mobile terminal will bedescribed later with reference to FIG. 3.

The case 200 may be a pouch that protects outer surfaces of the mobileterminal 100 or covers or accommodates at least one surface of themobile terminal 100 as an accessory of the mobile terminal 100. The case200 may be configured to expand a function of the mobile terminal 100 incombination with the mobile terminal 100.

Meanwhile, in the present disclosure, information output from the mobileterminal may be processed in association with a structure or a functionof the case 200. For example, referring to FIG. 1A, the case 200 mayinclude a display (hereinafter, referred to a “second display 250”)interworking with a display (hereinafter, a “first display 151”) of themobile terminal.

The case may include first and second bodies 220 that are rotatablyconnected to each other, and the display 250 may be disposed on any oneof the first and second bodies 210, 220.

For example, the first body 210 may be disposed to accommodate at leasta portion of the mobile terminal body. As a rear side of the mobileterminal is accommodated in the first body 210, and the first display151 disposed on a front side of the mobile terminal is exposed outside.

In addition, there may be provided at least one hole on one side of thefirst body 210, so that at least a part of components of the mobileterminal exposed outside the case performs a function when the mobileterminal 100 is coupled to the first body 210.

Here, the mobile terminal 100 may be detachably coupled to the firstbody 210. In addition, the mobile terminal may be configured to detectwhether the mobile terminal is coupled to the first body 210. For thedetection, the first body 210 may include a magnet 245 on one sidethereof facing the mobile terminal 100, and the mobile terminal mayinclude a hall sensor 143 at the rear side thereof which is configuredto sense a magnetic field corresponding to the magnet 245 when themobile terminal is coupled to the first body. When the magnetic field issensed by the hall sensor, the mobile terminal may recognize that it iscoupled to the case, and then perform predetermined control.

For example, when a magnetic field is sensed by the hall sensor 143 acontroller 180 of the mobile terminal 100 may supply an operatingcurrent to the second display 250 provided on the second body 220 orperform a process to prepare a state in which a signal can betransmitted to the second display 250. That is, the predeterminedcontrol may refer to an operation related to the preparation process.

Here, the ‘preparation process’ denotes a standby state in which thecontroller of the mobile terminal 100 can immediately perform a nextprocess when an operating current is supplied to the second display 250.Therefore, even if the magnetic field is sensed by the hall sensor 143,a current is not immediately supplied to the second display 250.

Meanwhile, when it is detected that a connector provided on one side ofthe first body 210, for example, at a lower end of the first body 210and a connection port provided at a lower end of the mobile terminalaccommodated in the first body 210 are mutually coupled, the controller180 of the mobile terminal may supply an operating current to the seconddisplay 250 provided on the second body 220.

Specifically, an operating current may be supplied from a power supplyunit of the mobile terminal 100 to a circuit board on the second display250 through a flexible printed circuit board (FPCB) connected by theconnector and a wiring portion (e.g., a coaxial cable) provided in aconnection portion 230 of the case 200.

To this end, the controller 180 of the mobile terminal may be configuredto recognize resistances Ra, Rd in the first body 210 through a specificcontact pin of the connector provided in the first body 210, detect acoupling of the connector and the connection port, and accordinglysupply an operating current. This will be described in more detailbelow.

The second display 250 provided on the second body 220 may be configuredto operate based on power supplied from the mobile terminal 100.

The second display 250 may be disposed on the second body 220 to extenda display area of the first display 151 or may be operated independentlyof the first display 151. For example, contents related to informationdisplayed on the first display 151 may be mirrored to be displayed onthe second display 250.

In addition, execution screens of different applications may bedisplayed on the first display 151 and the second display 250,respectively. As another example, an execution screen of one applicationmay be divided and displayed on the first display 151 and the seconddisplay 250. Also, screens corresponding to different execution steps ordifferent tasks of one application may be displayed on the first display151 and the second display 250.

Furthermore, the mobile terminal 100 is configured to control screeninformation displayed on the second display 250, and for this purpose, acommunication link for wired communication (e.g., a USB 2.0communication link) may be established between the mobile terminal 100and the second display 250.

Meanwhile, both the first display 151 and the second display 250 areexposed outside in open state, and the open state may be defined withreference to FIG. 1B.

Referring to FIG. 1B, the first and second bodies 210, 220 of the case200 may be relatively rotated between closed state in (a) of FIG. 1B andflipped state in (c) of FIG. 1B.

The closed state is the state in (a) of FIG. 1B, wherein the first body210 of the case 200 is covering the first display 151 of the mobileterminal 100. Here, the first display 151 is covered by the first body210. That is, the closed state may be a state in which the first display151 is covered by the second display 250. In the closed state, themobile terminal 100 and the case 200 overlap each other in a thicknessdirection of the mobile terminal, and thus form a diary-like shape,thereby improving user portability.

In the closed state, a body of the mobile terminal 100 accommodated inthe first body 210 may not be exposed outside. In addition, in theclosed state, a sub-display 250 a to display notification informationcorresponding to a specific event occurring in the mobile terminal 100may be exposed from one side of a front surface of the second body 220including the second display 250.

In the closed state, the second body 220 is rotated relative to thefirst body 210 to be changed to the open state.

The open state is a state in which the first display is not covered bythe second display 250, and between the first display 151 and the seconddisplay 250 forms a specific angle other than 0 degrees.

Specifically, the open state may be one of a ‘first state’ in which thefirst display 151 and the second display 250 form about 60 degrees (a),a ‘second state’ in which the first display 151 and the second display250 form about 120 degrees (b), a ‘third state’ in which the firstdisplay 151 and the second display 250 form about 180 degrees (c), and a‘fourth state’ in which the first display 151 and the second display 250form about 270 degrees (d), as illustrated in (b) of FIG. 1B.

In the open state, the first and second bodies 210, 220 may be fixed ata specific angle to become any one of the first to fourth states, and afixing member to fix the bodies at a specific angle may be provided inthe second body 220.

The controller 180 of the mobile terminal may control the mobileterminal to perform different operation modes in any one of the first tofourth states. For example, in the first state, the mobile terminal mayoperate in a ‘privacy protection mode’, and in the second state, themobile terminal may operate in a ‘laptop mode’. In addition, in thethird state, the mobile terminal may operate in a ‘display extensionmode’, and in the fourth state, may operate in a ‘multi-display mode’.

A state in which the first display 151 and the second display 250 areexposed outside is defined as the ‘open state’. In the ‘open state’, thefirst display 151 is not covered by the second display 250. Accordingly,a state in which the first display 151 is covered by the second display250 is defined as the ‘closed state’. The open state and the closedstate may be distinguished by a sensing value of an illuminance sensorprovided on a front surface of the first display 151.

Meanwhile, as illustrated in (c) of FIG. 1B, a state in which the firstdisplay 151 and the second display 250 relatively rotate to form 360degrees, so that a rear surface of the first body 210 on which the firstdisplay 151 is disposed is completely covered by the a rear surface ofthe second body 220 on which the second display 250 is disposed may bedefined as the ‘flipped state’ in the open state. In the ‘flippedstate’, the first display 151 and the second display 250 are exposedoutside to face opposite directions to each other.

In the flip state, components provided on the rear surface of the mobileterminal 100 coupled to the first body 210, for example, the rear camera121 b, the optical output module 154, and the flash 124, the user inputunit 123 a may be detected by recognizing a state covered by the rearsurface of the second body 220.

In addition, the first state to the fourth state, and the flipped statemay be detected by a separate sensor provided in the connection portion230 that couples the first and second bodies 210, 220 to be relativelyrotatable or separate sensors provided on rear surfaces of the first andsecond bodies 210, 220.

The electronic device 300 of the present disclosure may perform anoperation of controlling the first display 151 and the second display250 in cooperation with the open state and closed state. As an example,when the first display 151 and the second display 250 are operated ininactive state in the closed state and are changed from the closed stateto the open state, at least one of the first display 151 and the seconddisplay 250 may be activated.

As an example, when changed to the open state, both the first display151 and the second display 250 may be changed to active state. Here,different home screen pages may be displayed on the first display 151and the second display 250, respectively, or identical home screen pagesmay be displayed on the first display 151 and the second display 250. Inaddition, various information may be displayed on the first display 151and the second display 250 according to circumstances.

As another example, when changed to the open state, the first display151 is switched to active state, and the second display 250 may bemaintained in the inactive state.

The second display 250 may include a touch sensor configured to sense atouch applied to the second display 250. Also, the second display 250may be configured to sense a touch even in the inactive state.

In relation to the touch sensed by the touch sensor, the second display250 may be operated in active state when a predetermined type of touchis applied to the second display 250 in the open state. Alternatively,the second display 250 may be operated in active state based on a touchapplied to the first display 151 in the open state.

Meanwhile, when a touch is applied to the second display 250, the seconddisplay 250 may transmit a touch signal corresponding to the touch tothe mobile terminal 100. Then, when the touch according to the receivedtouch signal corresponds to a predetermined type of touch, the mobileterminal 100 may transmit a signal corresponding to a control command toactivate the second display 250 to the second display 250 side.

Then, the second display 250 and the controller of the second display250 may be activated based on the signal received from the mobileterminal 100.

The transmission and reception of the signal may be performed by a wiredcommunication method combining the connector provided on one side of thefirst body 210 and the connection port provided on the mobile terminal100.

Meanwhile, a structure of the case to implement the operation of theelectronic device described above will be described in more detailbelow.

Referring to FIG. 2A, the first body 210 of the case 200 includes anaccommodating space 211 configured to accommodate a rear surface of thebody of the mobile terminal. The first body accommodates at least aportion of the mobile terminal in the accommodating space 211, and therear surface of the mobile terminal is disposed on a bottom surface ofthe accommodating space 211.

The second body 220 on which the second display 250 is disposed isrotatably coupled to the first body by the connection portion 230. Thatis, the connection portion 230 is disposed between the first and secondbodies 210, 220 to couple the first and second bodies 210, 220 so thatthe first and second bodies 210, 220 are relatively rotatable.

The sub-display 250 a to display predetermined information, for example,time information or event notification, may be provided on a front sideof the second body 220. In this case, a simple event notification can beimmediately checked through the sub-display 250 a in the closed statewithout switching the electronic device 300 to the open state.

Referring to FIGS. 2A to 2D, the second body 220 may include a firstcover 221, a second cover 222, and the second display 250. A receivinggroove 221 a that accommodates at least a part of the connection portion230 may be disposed in the first cover 221. In addition, the secondcover 222 is coupled to the first cover 221, and may be a frame in whichvarious electronic components are mounted. As such an example, a circuitboard 248 on the second display 250 side, which will be described later,may be mounted on the second cover 222.

The second cover 222 may be rotatably coupled to the connection portion230, and a groove may be disposed at a position corresponding to thereceiving groove 221 a of the first cover 221 on the second cover 222,and the connection portion 230 may be disposed in the groove 222 a. Inthis case, the second display 250 may be mounted on the second cover222.

In addition, a signal transmitted from the controller of the mobileterminal is transmitted to the second display 250 side through a wiringportion 242, for example, a coaxial cable, provided on an inner side ofthe connection portion 230 and connected to a flexible printed circuitboard 247 provided on a rear side of the first body 210. Hereinafter,the flexible printed circuit board provided on the rear side of thefirst body 210 and combined with the wiring portion 242 of theconnection portion 230 will be referred to as a ‘first flexible printedcircuit board’ 247. In addition, a flexible printed circuit boardprovided on a rear side of the second body 220 and combined with thewiring portion 242 of the connection portion 230 is referred to as a‘second flexible printed circuit board’ 248.

The connection portion 230 may include a first hinge 231 and a secondhinge 232 spaced apart along a side surface of the first body 210. Thefirst hinge 231 and the second hinge 232 may each include a hinge body233 and a hinge shaft 234.

A hinge groove (not shown) is disposed in the hinge body 233, and thehinge shaft 234 is inserted into the hinge groove so that the first andsecond bodies 210, 220 can rotate relative to each other. The hingeshaft 234 may be provided in plural, and coupling portions 235 coupledto the first and second bodies 210, 220, respectively, may be disposedon one side of the hinge shaft 234.

In addition, the wiring portion 242, for example, a coaxial cable, to beconnected to a first flexible printed circuit board 247 and a secondflexible printed circuit board 248 is provided on the inner side of theconnection portion 230.

A connector 243 a protruded toward the accommodating space 211accommodating the mobile terminal and inserted into the connection portprovided on one side of the mobile terminal body may be disposed on oneside of the first body 210. To this end, at least one hole H throughwhich at least a portion of a connector module including the connector243 a penetrates may be disposed on one side of the first body 210, forexample, a side surface of a lower end.

Although not all illustrated, the connector 243 a may be disposed to berotatable 180 degrees toward the outside of the case, or may be disposedto be drawn in or out of the case by external force. In this case, evenif there exists the connector 243, the mobile terminal body can beeasily accommodated in the first body 210.

Alternatively, in one example, the first body 210 may be detachable in avertical direction or at least an upper portion of the first body 210may be made of a flexible material so that the mobile terminal body canbe easily accommodated in the first body 210.

The connector module in which the connector 243 a is installed may bemounted on one side of the first body 210, for example, at a center of alower end. The connector 243 a may be installed at one end of theconnector module, and a charging port having a female pogo pin to becoupled to an external male pin may be installed at another end.

The connector 243 a may be connected to a circuit board 244 to controlthe second display 250 through the first flexible printed circuit board247, the second flexible printed circuit board 248, and the wiringportion 242. In addition, the connector 243 a may be connected to thecircuit board 244 through coupling with the connection port of themobile terminal body. Here, the connection port provided in the mobileterminal body may denote, for example, a USB port.

A side of the second display 250 performs wired communication with themobile terminal 100 through the first and second flexible circuit boards247, 248, the wiring portion 242, and the circuit board 244 coupledthrough the connector 243. Furthermore, the mobile terminal 100 performswired communication with the second display 250 through a connectionport connected to the connector 243. In this regard, the connection portof the mobile terminal 100 may be referred to as a ‘first wiredcommunication unit’, and the connector 243 of the case may be referredto as a ‘second wired communication unit’.

A first wired communication unit 161 and a second wired communicationunit 243 may perform USB communication. The first wired communicationunit 161 may perform USB I/O communication to transmit a signal to thecase side through the second wired communication unit 243.

In addition, the second wired communication unit 243 may perform USB I/Ocommunication to transmit a signal to the mobile terminal through thefirst wired communication unit 161. Here, the USB I/O communication mayrefer to USB 2.0 or USB 3.0 communication.

A USB (Universal Serial Bus), which is a common connector, is defined asan interface standard that enables connection of various peripheraldevices. In the USB (Universal Serial Bus), a host necessarily exists,and communication is performed by a control through the host.

Referring to FIG. 2B, the connector 243 provided at the lower end of thefirst body 210 of the case and connected to the connection port of themobile terminal may be mounted on the connector module. One end of theconnector 243 is joined to a supporting member of the connector module,and another end of the connector 243 may define a protrusion 243 c. Theconnector 243 is connected to the connection port of the mobile terminalas the protrusion 243 c is inserted in a direction from the outside toinside of the mobile terminal.

A plurality of contact pins (e.g., male pins) may be provided inside theconnector, and each of the plurality of contact pins may be set toperform a specific function when connected to pins of the connectionport of the mobile terminal (e.g., female pins). This will be describedin more detail below.

Meanwhile, according to FIG. 2A, the first body 210 is provided with thefirst flexible circuit board 247 connected to the connector 243. Thefirst flexible circuit board 247 may be connected to the second flexibleprinted circuit board 248 and the circuit board 244 at a side of thesecond display 250 through the wiring portion 242, for example, acoaxial cable, inside the connection portion 230.

In this way, the first body 210 does not have a separate circuit boardfor wireless communication or the like other than the first flexibleprinted circuit board 247, so that the first body 210 becomes thinner,and the mobile terminal also does not need to have a separate circuitboard for wireless communication. Accordingly, a compatibility of themobile terminal mountable in the case is further improved, and anoverall thickness of the electronic device can be fabricated thinner.

According to the drawing, the first and second bodies 210, 220 arecoupled to the circuit board 244 via the wiring portion 242 coupled tothe first and the second flexible printed circuit boards 247, 248, andthey are electrically connected to each other. The circuit board 244 maybe connected to the second display 250 to transmit a signal receivedfrom the mobile terminal 100 to the second display 250.

That is, the circuit board 244 may transmit data transmitted andreceived from the mobile terminal through the first wired communicationunit 161 and the second wired communication unit 243 to the seconddisplay 250.

The wiring portion 242 electrically connects the first and second bodies210, 220 through the connection portion 230. For this connection, aconnection passage through which the wiring portion 242 passes may bedisposed in the connection portion 230.

As an example of this, the first hinge 231 and the second hinge 232 havean accommodating space accommodating at least a part of the wiringportion 242. For example, the wiring portion 242 connected to the firstflexible printed circuit board 247 that is coupled with the second wiredcommunication unit 243 may be accommodated in the second hinge 232. Inaddition, the first hinge 231 and the second hinge 232 may be defined ina mutually symmetrical structure or shape.

The first and second wired communication units 161, 243 may be disposedat a lower side of the case 200 and the mobile terminal 100. In thiscase, the first flexible printed circuit board 247 connected to thewiring portion 242 may also be formed to be connected to one of thefirst hinge 231 and the second hinge 232 from the lower side.

In addition, the second hinge 232 may include an extending portion 236extending from the hinge body 233, and the extending portion 236 mayinclude cables 246 extended to the first body 210 and the second body220, respectively. The accommodating space is disposed in the extendingportion 236, and the cables 246 are accommodated in the accommodatingspace. The first flexible printed circuit board and second flexibleprinted circuit boards 247, 248 are disposed at both ends of the cables246, and the first and second flexible printed circuit boards 247, 248are electrically connected to the circuit board 244. According to thestructure, a signal controlling the second display 250 is transmittedfrom the mobile terminal to the first body 210 and the second body 220through the first wired communication unit 161 and the second wiredcommunication unit 243.

Meanwhile, referring to the drawings, at the lower end of the first body210 of the case, there may be disposed the connector 243 a connected tothe connection portion of the mobile terminal so that the second display250 and the circuit board 244 receive power from the mobile terminal.The connector 243 a supplies power of the mobile terminal to the circuitboard 244 through the first flexible printed circuit board 247, thewiring portion 242, and the second flexible printed circuit board 248,and the circuit board 244 provides the power to the second display 250.

According to the structure, power supplied to the second display 250 anda signal transmitted to the second display 250 may be transmittedthrough a wired path in the mobile terminal.

According to the above-described structure, the electronic deviceperforms an operation of controlling the first display 151 and thesecond display 250 to interwork with each other using wiredcommunication and a wired power supply path. Hereinafter, the structureand the function of the mobile terminal will be described first, andthen the control operation will be described.

FIGS. 3A, 3B and 3C are conceptual views for explaining an example of amobile terminal related to the present disclosure. The mobile terminal100 according to the present disclosure may be coupled to a case of theelectronic device described above.

Referring to FIGS. 3A through 3C, FIG. 3A is a block diagram forexplaining a mobile terminal associated with the present disclosure, andFIGS. 3B and 3C are conceptual views illustrating an example in whichthe mobile terminal associated with the present disclosure is seen fromdifferent directions.

The mobile terminal 100 may include components, such as a wirelesscommunication unit 110, an input unit 120, a sensing unit 140, an outputunit 150, an interface unit 160, a memory 170, a controller 180, a powersupply unit 190 and the like. The components shown in FIG. 1A are notessential for implementing a mobile terminal, and thus the mobileterminal described herein may have more or fewer components than thoselisted above.

In more detail, the wireless communication unit 110 of those componentsmay typically include one or more modules which permit wirelesscommunications between the mobile terminal 100 and a wirelesscommunication system, between the mobile terminal 100 and another mobileterminal 100, or between the mobile terminal 100 and an external server.In addition, the wireless communication unit 110 may include one or moremodules that connect the mobile terminal 100 to one or more networks.

The wireless communication unit 110 may include at least one of abroadcast receiving module 111, a mobile communication module 112, awireless Internet module 113, a short-range communication module 114, alocation information module 115 and the like.

The input unit 120 may include a camera 121 for inputting an imagesignal, a microphone 122 or an audio input module for inputting an audiosignal, or a user input unit 123 (for example, a touch key, a push key(or a mechanical key), etc.) for causing a user to input information.Audio data or image data collected by the input unit 120 may be analyzedand processed by a user's control command.

The sensing unit 140 may include at least one sensor which senses atleast one of internal information of the mobile terminal, a surroundingenvironment of the mobile terminal and user information. For example,the sensing unit 140 may include a proximity sensor 141, an illuminationsensor 142, a touch sensor, an acceleration sensor, a magnetic sensor, aG-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, aninfrared (IR) sensor, a finger scan sensor, a ultrasonic sensor, anoptical sensor (for example, refer to the camera 121), a microphone 122,a power supply unit gauge (battery gauge), an environment sensor (forexample, a barometer, a hygrometer, a thermometer, a radiation detectionsensor, a thermal sensor, a gas sensor, etc.), and a chemical sensor(for example, an electronic nose, a health care sensor, a biometricsensor, etc.). On the other hand, the mobile terminal disclosed hereinmay utilize information in such a manner of combining information sensedby at least two sensors of those sensors.

The output unit 150 may be configured to output an audio signal, a videosignal or a tactile signal. The output unit 150 may include a display151, an audio output module 152, a haptic module 153, an optical outputmodule 154 and the like. The display 151 may have an inter-layeredstructure or an integrated structure with a touch sensor in order tofacilitate a touch screen. The touch screen may provide an outputinterface between the mobile terminal 100 and a user, as well asfunctioning as the user input unit 123 which provides an input interfacebetween the mobile terminal 100 and the user.

The interface unit 160 may serve as an interface with various types ofexternal devices connected with the mobile terminal 100. The interfaceunit 160, for example, may include wired or wireless headset ports,external power supply ports, wired or wireless data ports, memory cardports, ports for connecting a device having an identification module,audio input/output (1/O) ports, video I/O ports, earphone ports, or thelike. The mobile terminal 100 may execute an appropriate controlassociated with a connected external device, in response to the externaldevice being connected to the interface unit 160.

In addition, the memory 170 stores data that support various functionsof the mobile terminal 100. The memory 170 is typically implemented tostore data to support various functions or features of the mobileterminal 100. For instance, the memory 170 may be configured to storeapplication programs executed in the mobile terminal 100, data orinstructions for operations of the mobile terminal 100, and the like. Atleast some of those application programs may be downloaded from anexternal server via wireless communication. Some others of thoseapplication programs may be installed within the mobile terminal 100 atthe time of being shipped for basic functions of the mobile terminal 100(for example, receiving a call, placing a call, receiving a message,sending a message, etc.). On the other hand, the application programsmay be stored in the memory 170, installed in the mobile terminal 100,and executed by the controller 180 to perform an operation (or afunction) of the mobile terminal 100.

The controller 180 may typically control an overall operation of themobile terminal 100 in addition to the operations associated with theapplication programs. The controller 180 may provide or processinformation or functions appropriate for a user in a manner ofprocessing signals, data, information and the like, which are input oroutput by the aforementioned components, or activating the applicationprograms stored in the memory 170.

Furthermore, the controller 180 may control at least part of thecomponents illustrated in FIG. 1A, in order to drive the applicationprograms stored in the memory 170. In addition, the controller 180 maydrive the application programs by combining at least two of thecomponents included in the mobile terminal 100 for operation.

The power supply unit 190 may receive external power or internal powerand supply appropriate power required for operating respective elementsand components included in the mobile terminal 100 under the control ofthe controller 180. The power supply unit 190 includes a power supplyunit, and the power supply unit may be a built-in power supply unit or areplaceable power supply unit.

At least part of those elements and components may be combined toimplement operation and control of the mobile terminal or a controlmethod of the mobile terminal according to various exemplary embodimentsdescribed herein. Furthermore, the operation and control or the controlmethod of the mobile terminal may be implemented in the mobile terminalin such a manner of activating at least one application program storedin the memory 170.

Hereinafter, each aforementioned component will be described in moredetail with reference to FIG. 3A, prior to explaining various exemplaryembodiments implemented by the mobile terminal 100 having theconfiguration.

First, the wireless communication unit 110 will be described. Thebroadcast receiving module 111 of the wireless communication unit 110may receive a broadcast signal and/or broadcast associated informationfrom an external broadcast managing entity via a broadcast channel. Thebroadcast channel may include a satellite channel and/or a terrestrialchannel. At least two broadcast receiving modules 111 may be provided inthe mobile terminal 100 to simultaneously receive at least two broadcastchannels or switch the broadcast channels.

The mobile communication module 112 may transmit/receive wirelesssignals to/from at least one of network entities, for example, a basestation, an external terminal, a server, and the like, on a mobilecommunication network, which is constructed according to technicalstandards or transmission methods for mobile communications (forexample, Global System for Mobile communication (GSM), Code DivisionMulti Access (CDMA), Code Division Multi Access 2000 (CDMA2000),Enhanced Voice-Data Optimized or Enhanced Voice-Data Only (EV-DO),Wideband CDMA (WCDMA), High Speed Downlink Packet Access (HSDPA), HighSpeed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), Long TermEvolution-Advanced (LTE-A), etc.)

Here, the wireless signals may include audio call signal, video(telephony) call signal, or various formats of data according totransmission/reception of text/multimedia messages.

The wireless Internet module 113 refers to a module for supportingwireless Internet access, and may be built-in or externally installed onthe mobile terminal 100. The wireless Internet module 113 may transmitand/or receive wireless signals via communication networks according towireless Internet technologies.

Examples of such wireless Internet access may include Wireless LAN(WLAN), Wireless-Fidelity (Wi-Fi), Wireless Fidelity Direct (Wi-FiDirect), Digital Living Network Alliance (DLNA), Wireless Broadband(WiBro), World Interoperability for Microwave Access (WiMAX), High SpeedDownlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA),LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), and thelike. The wireless Internet module 113 may transmit/receive dataaccording to at least one wireless Internet technology within a rangeincluding even Internet technologies which are not aforementioned.

From the perspective that the wireless Internet accesses according toWipro, HSDPA, GSM, CDMA, WCDMA, LTE, LTE-A and the like are executed viaa mobile communication network, the wireless Internet module 113 whichperforms the wireless Internet access via the mobile communicationnetwork may be understood as a type of the mobile communication module112.

The short-range communication module 114 denotes a module forshort-range communications. Suitable technologies for implementing theshort-range communications may include BLUETOOTH™, Radio FrequencyIDentification (RFID), Infrared Data Association (IrDA), Ultra-WideBand(UWB), ZigBee, Near Field Communication (NFC), Wireless-Fidelity(Wi-Fi), Wi-Fi Direct, and the like. The short-range communicationmodule 114 may support wireless communications between the mobileterminal 100 and a wireless communication system, between the mobileterminal 100 and another mobile terminal 100, or between the mobileterminal and a network where another mobile terminal 100 (or an externalserver) is located, via wireless personal area networks. The short-rangecommunication module 114 denotes a module for short-rangecommunications.

Here, the another mobile terminal 100 may be a wearable device, forexample, a smart watch, smart glasses or a head mounted display (HMD),which is able to exchange data with the mobile terminal 100 (or to linkdata with the mobile terminal 100). The short-range communication module114 may sense (recognize) a wearable device, which is able tocommunicate with the mobile terminal), near the mobile terminal 100. Inaddition, when the sensed wearable device is a device which isauthenticated to communicate with the mobile terminal 100 according tothe present disclosure, the controller 180 may transmit at least part ofdata processed in the mobile terminal 100 to the wearable device via theshort-range communication module 114. Hence, a user of the wearabledevice may use the data processed in the mobile terminal 100 on thewearable device. For example, when a call is received in the mobileterminal 100, the user may answer the call using the wearable device.Also, when a message is received in the mobile terminal 100, the usercan check the received message using the wearable device.

The location information module 115 is generally configured to detect,calculate, derive or otherwise identify a position of the mobileterminal. As an example, the location information module 115 includes aGlobal Position System (GPS) module, a WiFi module, or both. Forexample, when the mobile terminal uses the GPS module, a position of themobile terminal may be acquired using a signal sent from a GPSsatellite. As another example, when the mobile terminal uses the Wi-Fimodule, a position of the mobile terminal may be acquired based oninformation associated with a wireless access point (AP) which transmitsor receives a wireless signal to or from the Wi-Fi module. According tothe need, the location information module 115 may perform any functionof the other modules of the wireless communication unit 110 to obtaindata on the location of the mobile terminal. As a module used to acquirethe location (or current location) of the mobile terminal, the locationinformation module 115 may not be necessarily limited to a module fordirectly calculating or acquiring the location of the mobile terminal.

Then, the input unit 120 is configured to provide an video information(or signal), audio information (or signal), data or an input ofinformation entered by a user, and the mobile terminal 100 may includeone or a plurality of cameras 121 to enter video information. The camera121 processes an image frame, such as still picture or video, acquiredby an image sensor in a video phone call or image capturing mode. Theprocessed image frames may be displayed on the display 151. On the otherhand, the plurality of cameras 121 disposed in the mobile terminal 100may be arranged in a matrix configuration. By use of the cameras 121having the matrix configuration, a plurality of image information havingvarious angles or focal points may be input into the mobile terminal100. As another example, the cameras 121 may be located in astereoscopic arrangement to acquire left and right images forimplementing a stereoscopic image.

The microphone 122 may process an external audio signal into electricaudio data. The processed audio data may be utilized in various mannersaccording to a function being executed in the mobile terminal 100 (or anapplication program being executed). On the other hand, the microphone122 may include assorted noise removing algorithms to remove noisegenerated in the course of receiving the external audio signal.

The user input unit 123 may receive information input by a user. Wheninformation is input through the user input unit 123, the controller 180may control an operation of the mobile terminal 100 to correspond to theinput information. The user input unit 123 may include one or more of amechanical input element (for example, a key, a button located on afront and/or rear surface or a side surface of the mobile terminal 100,a dome switch, a jog wheel, a jog switch, and the like), or atouch-sensitive input, among others. As one example, the touch-sensitiveinput may be a virtual key or a soft key, which is displayed on a touchscreen through software processing, or a touch key which is located onthe mobile terminal at a location that is other than the touch screen.On the other hand, the virtual key or the visual key may be displayed onthe touch screen in various shapes, for example, graphic, text, icon,video, or a combination thereof.

On the other hand, the sensing unit 140 may sense at least one ofinternal information of the mobile terminal, surrounding environmentinformation of the mobile terminal and user information, and generate asensing signal corresponding to it. The controller 180 may control anoperation of the mobile terminal 100 or execute data processing, afunction or an operation associated with an application programinstalled in the mobile terminal based on the sensing signal.Hereinafter, description will be given in more detail of representativesensors of various sensors which may be included in the sensing unit140.

First, a proximity sensor 141 refers to a sensor to sense presence orabsence of an object approaching to a surface to be sensed, or an objectdisposed near a surface to be sensed, by using an electromagnetic fieldor infrared rays without a mechanical contact. The proximity sensor 141may be arranged at an inner area of the mobile terminal covered by thetouch screen, or near the touch screen.

The proximity sensor 141 may include an optical transmission typephotoelectric sensor, a direct reflective type photoelectric sensor, amirror reflective type photoelectric sensor, a high-frequencyoscillation proximity sensor, a capacitance type proximity sensor, amagnetic type proximity sensor, an infrared rays proximity sensor, andso on. When the touch screen is implemented as a capacitance type, theproximity sensor 141 may sense proximity of a pointer to the touchscreen by changes of an electromagnetic field, which is responsive to anapproach of an object with conductivity. In this case, the touch screen(touch sensor) may also be categorized as a proximity sensor.

On the other hand, for the sake of brief explanation, a behavior inwhich the pointer is positioned to be proximate onto the touch screenwithout contact will be referred to as “proximity touch,” whereas abehavior in which the pointer substantially comes into contact with thetouch screen will be referred to as “contact touch.” For the positioncorresponding to the proximity touch of the pointer on the touch screen,such position will correspond to a position where the pointer facesperpendicular to the touch screen upon the proximity touch of thepointer. The proximity sensor 141 may sense proximity touch, andproximity touch patterns (e.g., distance, direction, speed, time,position, moving status, etc.). On the other hand, the controller 180may process data (or information) corresponding to the proximity touchesand the proximity touch patterns sensed by the proximity sensor 141, andoutput visual information corresponding to the process data on the touchscreen. In addition the controller 180 may control the mobile terminal100 to execute different operations or process different data (orinformation) according to whether a touch with respect to the same pointon the touch screen is either a proximity touch or a contact touch.

A touch sensor may sense a touch (or touch input) applied onto the touchscreen (or the display 151) using at least one of various types of touchmethods, such as a resistive type, a capacitive type, an infrared type,a magnetic field type, and the like.

As one example, the touch sensor may be configured to convert changes ofpressure applied to a specific part of the display 151 or a capacitanceoccurring from a specific part of the display 151, into electric inputsignals. The touch sensor may be configured to detect a position, anarea where a touch object applying a touch onto the touch screen istouched on the touch sensor, a pressure at the time of touch, acapacitance at the time of touch, and the like. Here, the touch objectbody may be a finger, a touch pen or stylus pen, a pointer, or the likeas an object through which a touch is applied to the touch sensor.

When a touch input is sensed by a touch sensor, corresponding signalsmay be transmitted to a touch controller. The touch controller mayprocess the received signals, and then transmit corresponding data tothe controller 180. Accordingly, the controller 180 may sense which areaof the display 151 has been touched. Here, the touch controller may be acomponent separate from the controller 180 or the controller 180 itself.

On the other hand, the controller 180 may execute a different control orthe same control according to a type of an object which touches thetouch screen (or a touch key provided in addition to the touch screen).Whether to execute the different control or the same control accordingto the object which gives a touch input may be decided based on acurrent operating state of the mobile terminal 100 or a currentlyexecuted application program.

Meanwhile, the touch sensor and the proximity sensor may be executedindividually or in combination, to sense various types of touches, suchas a short (or tap) touch, a long touch, a multi-touch, a drag touch, aflick touch, a pinch-in touch, a pinch-out touch, a swipe touch, ahovering touch, and the like.

An ultrasonic sensor may be configured to recognize position informationrelating to a sensing object by using ultrasonic waves. Meanwhile, thecontroller 180 may calculate the location of a wave generating sourcethrough information sensed from the optical sensor and the plurality ofultrasonic sensors. Since light is much faster than ultrasonic waves, atime for which the light reaches the optical sensor may be much shorterthan a time for which the ultrasonic wave reaches the ultrasonic sensor.The position of the wave generation source may be calculated using thefact. In more detail, the position of the wave generation source may becalculated by using a time difference from the time that the ultrasonicwave reaches based on the light as a reference signal.

The camera 121 constructing the input unit 120 may be a type of camerasensor. The camera sensor may include at least one of a photo sensor (orimage sensor) and a laser sensor.

The camera 121 and the laser sensor may be combined to detect a touch ofthe sensing object with respect to a 3D stereoscopic image. The photosensor may be laminated on the display device. The photo sensor may beconfigured to scan a movement of the sensing object in proximity to thetouch screen. In more detail, the photo sensor may include photo diodesand transistors at rows and columns to scan content placed on the photosensor by using an electrical signal which changes according to thequantity of applied light. Namely, the photo sensor may calculate thecoordinates of the sensing object according to variation of light tothus obtain position information of the sensing object.

The display 151 displays (outputs) information processed by the mobileterminal 100. For example, the display 151 may display execution screeninformation of an application program driven in the mobile terminal 100or user interface (UI) and graphic user interface (GUI) information inresponse to the execution screen information.

Furthermore, the display 151 may also be implemented as a stereoscopicdisplay for displaying stereoscopic images.

The stereoscopic display may employ a stereoscopic display scheme suchas stereoscopic scheme (a glass scheme), an auto-stereoscopic scheme(glassless scheme), a projection scheme (holographic scheme), or thelike.

The audio output module 152 may output audio data received from thewireless communication unit 110 or stored in the memory 160 in a callsignal reception mode, a call mode, a record mode, a voice recognitionmode, a broadcast reception mode, and the like. Also, the audio outputmodule 152 may also provide audible output signals associated with aparticular function (e.g., a call signal reception sound, a messagereception sound, etc.) carried out by the mobile terminal 100. The audiooutput module 152 may include a receiver, a speaker, a buzzer or thelike.

A haptic module 153 may generate various tactile effects the that usermay feel. A typical example of the tactile effect generated by thehaptic module 153 may be vibration. Strength, pattern and the like ofthe vibration generated by the haptic module 153 may be controllable bya user selection or setting of the controller. For example, the hapticmodule 153 may output different vibrations in a combining manner or asequential manner.

Besides vibration, the haptic module 153 may generate various othertactile effects, including an effect by stimulation such as a pinarrangement vertically moving with respect to a contact skin, a sprayforce or suction force of air through a jet orifice or a suctionopening, a touch on the skin, a contact of an electrode, electrostaticforce, etc., an effect by reproducing the sense of cold and warmth usingan element that can absorb or generate heat, and the like.

The haptic module 153 may be configured to transmit tactile effectsthrough a user's direct contact, or a user's muscular sense using afinger or a hand. Two or more haptic modules 153 may be providedaccording to the particular configuration of the mobile terminal 100.

An optical output module 154 may output a signal for indicating an eventgeneration using light of a light source. Examples of events generatedin the mobile terminal 100 may include a message reception, a callsignal reception, a missed call, an alarm, a schedule notice, an emailreception, an information reception through an application, and thelike.

A signal output by the optical output module 154 may be implemented insuch a manner that the mobile terminal emits monochromatic light orlight with a plurality of colors. The signal output may be terminated asthe mobile terminal senses that a user has checked the generated event,for example.

The interface unit 160 serves as an interface for external devices to beconnected with the mobile terminal 100. For example, the interface unit160 can receive data transmitted from an external device, receive powerto transfer to elements and components within the mobile terminal 100,or transmit internal data of the mobile terminal 100 to such externaldevice. The interface unit 160 may include wired or wireless headsetports, external power supply ports, wired or wireless data ports, memorycard ports, ports for connecting a device having an identificationmodule, audio input/output (1/O) ports, video I/O ports, earphone ports,or the like.

The identification module may be a chip that stores various informationfor authenticating authority of using the mobile terminal 100 and mayinclude a user identity module (UIM), a subscriber identity module(SIM), a universal subscriber identity module (USIM), and the like. Adevice having the identification module (hereinafter, an “identificationdevice”) may be fabricated in the form of a smart card. Accordingly, theidentifying device may be connected with the terminal 100 via theinterface unit 160.

Furthermore, when the mobile terminal 100 is connected with an externalcradle, the interface unit 160 may serve as a passage to allow powerfrom the cradle to be supplied to the mobile terminal 100 therethroughor may serve as a passage to allow various command signals input by theuser from the cradle to be transferred to the mobile terminaltherethrough. Such various command signals or power inputted from thecradle may operate as signals for recognizing that the mobile terminal100 has accurately been mounted to the cradle.

The memory 170 can store programs to support operations of thecontroller 180 and store input/output data (for example, phonebook,messages, still images, videos, etc.). The memory 170 may store datarelated to various patterns of vibrations and audio which are output inresponse to touch inputs on the touch screen.

The memory 170 may include at least one type of storage medium includinga Flash memory, a hard disk, a multimedia card micro type, a card-typememory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), aStatic Random Access Memory (SRAM), a Read-Only Memory (ROM), anElectrically Erasable Programmable Read-Only Memory (EEPROM), aProgrammable Read-Only memory (PROM), a magnetic memory, a magneticdisk, and an optical disk. Also, the mobile terminal 100 may be operatedin relation to a web storage device that performs the storage functionof the memory 170 over the Internet.

As aforementioned, the controller 180 may typically control the generaloperations of the mobile terminal 100. For example, the controller 180may set or release a locked state for restricting a user from inputtinga control command with respect to applications when a state of themobile terminal meets a preset condition.

Furthermore, the controller 180 may also perform controlling andprocessing associated with voice calls, data communications, videocalls, and the like, or perform pattern recognition processing torecognize a handwriting input or a picture drawing input performed onthe touch screen as characters or images, respectively. In addition, thecontroller 180 may control one or combination of those components inorder to implement various exemplary embodiment disclosed herein on themobile terminal 100.

The power supply unit 190 may receive external or internal power toprovide power required by various components under the control of thecontroller 180. The power supply unit 190 may include a power supplyunit, which is typically rechargeable built-in power supply unit or maybe detachably coupled to the terminal body for charging or the like.

Furthermore, the power supply unit 190 may include a connection port.The connection port may be configured as one example of the interfaceunit 160 to which an external (re)charger for supplying power torecharge the power supply unit is electrically connected.

As another example, the power supply unit 190 may be configured torecharge the power supply unit in a wireless manner without use of theconnection port. Here, the power supply unit 190 may receive power,transferred from an external wireless power transmitter, using at leastone of an inductive coupling method which is based on magnetic inductionor a magnetic resonance coupling method which is based onelectromagnetic resonance.

Various embodiments described herein may be implemented in acomputer-readable or its similar medium using, for example, software,hardware, or any combination thereof.

Referring now to FIGS. 3B and 3C, the mobile terminal 100 is describedwith reference to a bar-type terminal body. However, the presentdisclosure may not be necessarily limited to this, and may be alsoapplicable to various structures such as a watch type, a clip type, aglasses type, a folder type in which two or more bodies are coupled toeach other in a relatively movable manner, a slide type, a swing type, aswivel type, and the like. The present disclosure relates to a specifictype of mobile terminal, but the description of a specific type ofmobile terminal may be also applicable to another type of mobileterminal in general.

Here, the terminal body may be understood as a conception whichindicates the mobile terminal 100 as at least one assembly.

The mobile terminal 100 may include a case (for example, a frame, ahousing, a cover, etc.) constituting the appearance thereof. In thisembodiment, the case may be divided into a front case 101 and a rearcase 102. Various electronic components may be incorporated into a spacedisposed between the front case 101 and the rear case 102. At least onemiddle case may be additionally disposed between the front case 101 andthe rear case 102

The display 151 may be disposed on a front surface of the terminal bodyto output information. As illustrated, a window 151 a of the display 151may be mounted to the front case 101 so as to define the front surfaceof the terminal body together with the front case 101.

In some cases, electronic components may also be mounted to the rearcase 102. Examples of those electronic components mounted to the rearcase 102 may include a detachable power supply unit, an identificationmodule, a memory card and the like. Here, a back cover 103 for coveringthe electronic components mounted may be detachably coupled to the rearcase 102. Therefore, when the back cover 103 is separated from the rearcase 102, the electronic components mounted to the rear case 102 may beexternally exposed.

As illustrated, when the back cover 103 is coupled to the rear case 102,a side surface of the rear case 102 may be partially exposed. In somecases, upon the coupling, the rear case 102 may also be completelyshielded by the rear cover 103. Meanwhile, the rear cover 103 may beprovided with an opening portion for exposing the camera 121 b, theoptical output module 154, the flash 124, the rear input unit 123 a, andthe like to the outside.

The cases 101, 102, 103 may be formed by injection-molding syntheticresin or may be formed of a metal, for example, stainless steel (STS),aluminum (AI), titanium (Ti), or the like.

Unlike the example which the plurality of cases form an inner space foraccommodating such various components, the mobile terminal 100 may beconfigured such that one case forms the inner space. In this case, themobile terminal 100 with a unibody in which synthetic resin or metal isextended from a lateral surface to a rear surface may be implemented.

On the other hand, the mobile terminal 100 may include a waterproofingunit (not shown) for preventing an introduction of water into theterminal body. For example, the waterproof portion may include awaterproof member provided between the window 151 a and the front case101, between the front case 101 and the rear case 102, or between therear case 102 and the back cover 103, to hermetically seal an innerspace when those cases are coupled to each other.

The mobile terminal 100 may include a display 151, first and secondaudio output modules 152 a and 152 b, a proximity sensor 141, anillumination sensor 152, an optical output module 154, first and secondcameras 121 a and 121 b, first and second manipulation units 123 a and123 b, a microphone 122, an interface unit 160 and the like.

Hereinafter, as illustrated in FIGS. 1B and 1C, the mobile terminal 100will be described as an example in which the display 151, the firstaudio output module 152 a, the proximity sensor 141, the illuminationsensor 142, and the first camera 121 a are disposed on a front surfaceof the terminal body, the second manipulation unit 123 b, the secondaudio output module 152 b, the microphone 122, and the interface unit160 are disposed on a side surface of the terminal body, and the opticaloutput module 154, the manipulation unit 123 a, the second camera 121 b,and the flash 124 are disposed on a rear surface of the terminal body.

However, the foregoing configuration may not be necessarily limited tothe arrangement. The foregoing configuration may be excluded,substituted or disposed on another surface if necessary. For example,the manipulation unit may not be disposed on the front surface of theterminal body, and the second audio output module 152 b may be disposedon the rear surface other than the side surface of the terminal body.

The display 151 displays (outputs) information processed by the mobileterminal 100. For example, the display 151 may display execution screeninformation of an application program driven in the mobile terminal 100or user interface (UI) and graphic user interface (GUI) information inresponse to the execution screen information.

The display 151 may include at least one of a liquid crystal display(LCD), a thin film transistor-liquid crystal display (TFT-LCD), anorganic light emitting diode (OLED), a flexible display, a 3-dimensional(3D) display, and an e-ink display.

The display 151 may be implemented in two or more in number according toa configured aspect of the mobile terminal 100. For instance, aplurality of the displays 151 may be arranged on one surface to bespaced apart from or integrated with each other, or may be arranged ondifferent surfaces.

The display 151 may include a touch sensor which senses a touch onto thedisplay so as to receive a control command in a touching manner. When atouch is input to the display 151, the touch sensor may be configured tosense this touch and the controller 180 may generate a control commandcorresponding to the touch. The content which is input in the touchingmanner may be a text or numerical value, or a menu item which can beindicated or designated in various modes.

The touch sensor may be configured in a form of a film having a touchpattern, disposed between the window 151 a and a display on a rearsurface of the window 151 a, or a metal wire which is patterned directlyon the rear surface of the window 151 a. Alternatively, the touch sensormay be integrally formed with the display. For example, the touch sensormay be disposed on a substrate of the display or within the display.

The display 151 may define a touch screen together with the touchsensor. Here, the touch screen may serve as the user input unit 123 (seeFIG. 3A). In some cases, the touch screen may replace at least some ofthe functions of the user manipulation unit.

The first audio output module 152 a may be implemented in the form of areceiver for transferring voice sounds to the user's ear or a loudspeaker for outputting various alarm sounds or multimedia reproductionsounds.

The window 151 a of the display 151 may include a sound hole foremitting sounds generated from the first audio output module 152 a.Here, the present disclosure may not be limited to this. It may also beconfigured such that the sounds are released along an assembly gapbetween the structural bodies (for example, a gap between the window 151a and the front case 101). In this case, a hole independently disposedto output audio sounds may not be seen or is otherwise hidden in termsof appearance, thereby further simplifying the appearance andmanufacturing of the mobile terminal 100.

The optical output module 154 may output light for indicating an eventgeneration. Examples of the event may include a message reception, acall signal reception, a missed call, an alarm, a schedule notice, anemail reception, information reception through an application, and thelike. When a user's event check is sensed, the controller 180 maycontrol the optical output module 154 to end the output of light.

The first camera 121 a may process video frames such as still or movingimages acquired by the image sensor in a video call mode or a capturemode. The processed video frames may be displayed on the display 151 orstored in the memory 170.

The manipulation units 123 a and 123 b are examples of the user inputunit 123, which may be manipulated by a user to input a command forcontrolling the operation of the mobile terminal 100. The manipulationunits 123 a and 123 b may employ any method if it is a tactile mannercausing the user to perform manipulation with a tactile feeling such astouch, push, scroll or the like. In addition, the manipulation units 123a and 123 b may also employ a method of causing the user to performmanipulation without a tactile feeling through a proximity touch, ahovering touch, or the like.

The manipulation unit 123 a may be configured with a mechanical key, ora combination of a touch key and a push key. In addition, themanipulation unit 123 a may be configured in a layered form with afingerprint sensor.

The content input by the manipulation units 123 a and 123 b may be setin various ways. For example, the first and the second manipulationunits may receive a command such as menu, home key, cancel, search, orthe like, and may receive a command, such as controlling a volume levelbeing output from the first or second audio output module 152 a or 152b, switching into a touch recognition mode of the display 151, or thelike.

On the other hand, as another example of the user input unit 123, a rearinput unit (not shown) may be disposed on the rear surface of theterminal body. The rear input units are manipulated to enter acommunication for controlling the operation of the mobile terminal 100,and the content being entered may be set in various ways. For example,the rear input unit may be used by the user to input a command, such aspower on/off, start, end, scroll or the like, controlling a volume levelbeing output from the first or second audio output module 152 a or 152b, switching into a touch recognition mode of the display 151, or thelike. The rear input unit may be implemented into a form causing a touchinput, a push input or a combination thereof.

The rear input unit may be disposed to overlap with the display 151 ofthe front surface in a thickness direction of the terminal body. As oneexample, the rear input unit may be disposed on an upper end portion ofthe rear surface of the terminal body such that a user can easilymanipulate it using a forefinger when the user grabs the terminal bodywith one hand. However, the present disclosure may not be limited tothis, and the position of the rear input unit may be changeable.

When the rear input unit is disposed on the rear surface of the terminalbody, a new user interface may be implemented using the rear input unit.Also, the aforementioned touch screen or the rear input unit maysubstitute for at least part of functions of the first manipulation unit123 a located on the front surface of the terminal body. Accordingly,when the first manipulation unit 123 a is not disposed on the frontsurface of the terminal body, the display 151 may be implemented to havea larger screen.

On the other hand, the mobile terminal 100 may include a fingerprintrecognition sensor for recognizing a user's fingerprint, and thecontroller 180 may use fingerprint information sensed through the fingerrecognition sensor as an authentication means. The finger recognitionsensor may be integrated into the display 151 or the user input unit123.

The microphone 122 may be configured to enter the user's voice, othersounds, and the like. The microphone 122 may be provided at a pluralityof positions to receive stereo sounds.

The interface unit 160 may serve as a path causing the mobile terminal100 to exchange data with external devices. For example, the interfaceunit 160 may be at least one of a connection terminal for connecting toanother device (for example, an earphone, an external speaker, or thelike), a port for near field communication (for example, an InfraredData Association (IrDA) port, a Bluetooth port, a wireless LAN port, andthe like), or a power supply terminal for supplying power to the mobileterminal 100. The interface unit 160 may be implemented in the form of asocket for accommodating an external card, such as SubscriberIdentification Module (SIM), User Identity Module (UIM), or a memorycard for information storage.

The second camera 121 b may be further mounted to the rear surface ofthe terminal body. The second camera 121 b may have an image capturingdirection, which is substantially opposite to the direction of the firstcamera unit 121 a.

The second camera 121 b may include a plurality of lenses arranged alongat least one line. The plurality of lenses may also be arranged in amatrix configuration. The cameras may be referred to as an ‘arraycamera.’ When the second camera 121 b is implemented as the arraycamera, images may be captured in various manners using the plurality oflenses and images with better qualities may be obtained.

A flash 124 may be disposed adjacent to the second camera 121 b. When animage of a subject is captured with the camera 121 b, the flash 124 mayilluminate the subject.

The second audio output module 152 b may further be disposed on theterminal body. The second audio output module 152 b may implementstereophonic sound functions in conjunction with the first audio outputmodule 152 a, and may be also used for implementing a speaker phone modefor call communication.

At least one antenna for wireless communication may be disposed on theterminal body. The antenna may be installed in the terminal body ordisposed on the case. For example, an antenna which configures a part ofthe broadcast receiving module 111 (see FIG. 3A) may be retractable intothe terminal body. Alternatively, an antenna may be disposed in a formof film to be attached onto an inner surface of the rear cover 103 or acase including a conductive material may serve as an antenna.

A power supply unit 190 (see FIG. 3A) for supplying power to the mobileterminal 100 may be disposed on the terminal body. The power supply unit190 may include the power supply unit 191 which is mounted in theterminal body or detachably coupled to an outside of the terminal body.

The power supply unit 191 may receive power via a power source cableconnected to the interface unit 160. Furthermore, the power supply unit191 may be (re)chargeable in a wireless manner using a wireless charger.The wireless charging may be implemented by magnetic induction orelectromagnetic resonance.

On the other hand, the drawing illustrates that the rear cover 103 iscoupled to the rear case 102 for shielding the power supply unit 191, soas to prevent separation of the power supply unit 191 and protect thepower supply unit 191 from an external impact or foreign materials. Whenthe power supply unit 191 is detachable from the terminal body, the rearcase 103 may be detachably coupled to the rear case 102.

An accessory for protecting an appearance or assisting or extending thefunctions of the mobile terminal 100 can also be provided on the mobileterminal 100. As one example of an accessory, a cover or pouch forcovering or accommodating at least one surface of the mobile terminal100 may be provided. The cover or pouch may link with the display 151 toextend the function of the mobile terminal 100. Another example of theaccessory may be a touch pen for assisting or extending a touch inputonto a touch screen.

Meanwhile, the electronic device according to the present disclosure isconfigured in such a manner that the connection port of the interfaceunit 160 provided on one side (e.g., lower end of side surface) of themobile terminal, that is, the first wired communication unit 161 and theconnector provided on one side of the first body 210 of the case 200,i.e., the second wired communication unit 243 are combined together tosupply power and to perform wired communication for transmission andreception of various signals.

Here, it has been described that the wired communication is performedusing a USB I/O interface standard. However, it is not limited thereto,and it should be noted that other interface standards for wiredcommunication may be applied.

Hereinafter, a method for performing wired communication between thefirst wired communication unit 161 and the second wired communicationunit 243 will be described in more detail with reference to theaccompanying drawings. FIG. 4 is a conceptual view for explaining acontrol method between a mobile terminal and a display provided in acase in an electronic device according to present disclosure.

The mobile terminal 100 according to the present disclosure may becoupled to the first body 210, and when the mobile terminal 100 iscoupled to the first body 210, the connector 243 provided in the firstbody 210 is inserted into the connection port provided in the mobileterminal 100, and wired communication may be performed through the firstand second wired communication units 161, 243.

At this time, the first body 210 on the case side becomes a host deviceof the mobile terminal, and may perform wired communication, forexample, USB communication, with the mobile terminal 100.

The first wired communication unit 161 provided in the mobile terminal100 may be included in the interface unit 160 described with referenceto FIG. 3A. The interface unit 160 includes a plurality of contact pins,and is configured to identify a host device connected to the contactpins by the controller 180 of the mobile terminal.

The first wired communication unit 161 may be provided on a side surfaceof the lower end of the mobile terminal 100. In addition, the secondwired communication unit 243 may be provided to correspond to a positionin contact with the first wired communication unit 161 when the mobileterminal 100 is accommodated in the first body 210 of the case. That is,the second wired communication unit 243 may be provided on a sidesurface of the lower end of the first body 210.

In the present disclosure, when the mobile terminal 100 is accommodatedin the first body 210, and the connector pin of the second wiredcommunication unit 243 provided in the first body 210 is inserted intothe port of the first wired communication unit 161 of the mobileterminal, wired communication, for example, USB I/O communication, maybe performed through the first wired communication unit 161 and thesecond wired communication unit 243.

Accordingly, the mobile terminal 100 may supply an operating current tothe second display 250 through the USB I/O interface, and transmit acontrol signal or an image signal. Also, in the second display 250, atouch signal may be transmitted to the mobile terminal 100 through theUSB I/O interface to process the touch signal corresponding to the touchinput applied to the second display 250.

Meanwhile, supply of the above-described operating current andtransmission of the control signal and the image signal may be performedthrough different wired communication paths. To this end, the first andsecond wired communication units 161, 243 may include a plurality ofconnector pins, and may be set to use different contact pins accordingto the type of the transmitted signal.

Since the second wired communication unit 243 is inserted into the firstwired communication unit 161 and coupled to the case, a plurality ofcontact pins molded in the second wired communication unit 243 isexposed to the outside. In the present disclosure, a structure in whichthe plurality of contact pins includes, for example, 12 pins has beendescribed as an example.

Meanwhile, although not illustrated, the first and second wiredcommunication units 161, 243 may have a waterproof member (not shown)molded together with the plurality of contact pins to prevent fluid fromoutside or to prevent fluid from moving inside. In addition, thewaterproof member may be replaced with an O-ring having an elasticforce.

The second wired communication unit 243 provided in the first body 210is configured to transmit and receive wired data from the mobileterminal to the second display 250 through the wiring portion 242included in the connection portion 230. In addition, the second wiredcommunication unit 243 may communicate with the first wiredcommunication unit 161 to perform unidirectional communication (dataflow from the mobile terminal 100 to the second display 250) orbidirectional communication (bidirectional data flow between the mobileterminal 100 and the second display 250).

The first and second wired communication units 161, 243 according to thepresent disclosure may include a contact-type connector method. Forexample, the contact-type connector method may include a USB-C typeconnector or a lightning cable method.

In addition, the first and second wired communication units 161, 243 maybe configured to transmit and receive various types of data in a wiredcommunication method. For example, it may be one of graphic data, audiodata, video data, touch event data, data related to control, and acombination thereof.

Meanwhile, the second display 250 provided in the second body 220 may beconfigured to operate based on power supplied from the power supply unit191 of the mobile terminal 100.

Here, the power may be transmitted to the second display 250 and thecircuit board 244 provided on the second body 220, through the connector243 connected to the connection port of the mobile terminal 100, thewiring portion 242 coupled to the first flexible printed circuit board247 and provided in the connection portion 230, and the second flexibleprinted circuit board 248 as described above.

The power supply unit 191 of the mobile terminal 100 is configured tosupply an operating current (or power) to a power supply unit 291 of thesecond display 250 through an electric connection path of the firstwired communication unit 161 connected to the connection port, the firstflexible printed circuit board 247, the wiring portion 242 provided inthe connection portion 230, and the second flexible printed circuitboard 248 provided in the second body 220. Here, the operating currentis supplied to the second display 250 through a specific contact pinprovided in the first wired communication unit 161, for example, a ‘CC1’pin of a USB C-type.

Meanwhile, the mobile terminal 100 may be detachably coupled to thefirst body 210. In addition, the mobile terminal may be configured todetect whether the mobile terminal is coupled to the first body 210. Forthe detection, the first body 210 may include a magnet 245 on one sidethereof facing the mobile terminal 100, and the mobile terminal mayinclude a hall sensor 143 at the rear side thereof which is configuredto sense a magnetic field corresponding to the magnet 245 when themobile terminal is coupled to the first body. When the magnetic field issensed by the hall sensor, the mobile terminal may recognize that it iscoupled to the case, and then perform predetermined control.

Here, the predetermined control does not denote supplying an operatingcurrent as described above.

When the first and second wired communication units 161, 243 areconnected to enable mutual communication, the mobile terminal 100 mayrecognize a plurality of resistances Ra, Rd disposed in the first body210 by specific contact pins (e.g., CC1, CC2) among a plurality ofcontact pins included in the first wired communication unit 161 providedin the first body 210. When the plurality of resistances are recognizedas described above, an operating current is supplied to the seconddisplay 250 by supplying the power, for example, Vconn to CC1.

When an operating current is supplied to the second display 250, asystem of the second display 250 is booted and initialized, and becomesan operable standby state.

Here, the second display 250 is either in active state or in inactivestate, and even when the second display 250 is inactive, a touch sensor(or a touch panel 252) provided in the second display 250 is operated inan active state to sense a touch applied to the second display 250.

On the other hand, when the second display 250 is activated, thecontroller of the mobile terminal 100 transmits an image signalcorresponding to screen information to be displayed on the display 251provided on the second display 250 to the second wired communicationunit 243 side through the first wired communication unit 161. Here, awired communication path of the image signal is different from the wiredcommunication path for supplying power.

For example, the power may be supplied to the second display 250 througha wired communication path through the CC1 pin provided in the secondwired communication unit 243, and the image signal may be transmitted tothe second display 250 through a wired communication path through theUSB SS1 and SS2 pins.

Data may be received from the first wired communication unit 161 to thesecond display 250 through the second wired communication unit 243 andthe circuit board 244. Here, a digital image signal may convert the datainto a form that can be displayed on the second display 250 through adata converter 282. For example, the second display 250 may beconfigured as an LCD panel. And here, the digital image signal of a DPformat received from the mobile terminal 100 may be converted into adata format (MIPI format) that can be received on the LCD panel throughthe data converter 282 to be transferred and displayed on the display251.

Meanwhile, data transmitted and received through the first wiredcommunication unit 161 and the second wired communication unit 243 maybe transmitted and received using different contact pins in the USB I/Ointerface according to a type of the data.

Specifically, for example, the image signal may be transmitted andreceived from the mobile terminal 100 to the second display 250 througha USB SSPHY pin, and may be converted into a format that can bedisplayed on the second display 250 (e.g., MIPI format) through the dataconverter 282. In addition, for example, a control signal related to theoperation of the second display 250 may be transmitted and received tothe second display 250 through an external display port (EDP) AUX pin.

Signals that need to be transmitted between the mobile terminal 100 andthe display 250, such as communication control signals, touch signals,and brightness control signals, can be transmitted and received througha first and a second signal processor 181, 281 using a second USB humaninterface device (HID) communication.

Here, in the mobile terminal 100 in an initial state, the first signalprocessor 181 transmits and receives signals through the first USBcommunication by using A6 and A7 pins on an A side, and B6 and B7 pinson a B side of the connector. Meanwhile, the first and second wiredcommunication units 161, 234 are connected to enable mutualcommunication and when a plurality of resistances Ra, Rd is recognizedthrough the CC1 pin, they are switched by switches and the A side pinsand B side pins used in the initial state are separated to transmit andreceive signals by using the second USB communication only using B6 andB7 pins on the B side.

As described above, when switches are switched to process signals byusing the second USB communication, the first and second signalprocessors 181, 281 may perform 12 c conversion by USB human interfacedevice (HID) communication to perform an operation corresponding to atouch applied to the second display 250, for example, transmission of atouch signal corresponding to the touch. Also, the first and secondsignal processors 181, 281 may support hot plug detect (HPD)communication between the controller 280 and the data converter 282through the second USB communication.

Meanwhile, initialization of the second display 250 may be controlled bythe controller 280 included in the second display 250.

As aforementioned, the mobile terminal according to the presentdisclosure may control information displayed on the display 250 providedin the case 200. That is, the operation of the second display 250 may becontrolled by the mobile terminal 100. To this end, the case 200 towhich the mobile terminal is coupled may be identified when theconnection port of the mobile terminal and the connector provided in thecase 200 are connected and a plurality of resistances are recognized.Therefore, since there is no need to provide a separate chip forcommunication between the mobile terminal and the case 200 in thepresent disclosure, the case 200 is compatible with various models ofmobile terminals, cost can be saved, and a thickness of the case 200 canbe thinner.

Hereinafter, a control method between the mobile terminal and thedisplay provided in the case will be described in more detail withreference to the accompanying drawings, based on the above descriptions.FIG. 5 is a representative flowchart for explaining a control methodbetween a mobile terminal and a display provided in a case in anelectronic device according to the present disclosure.

As described above, in an electronic device 300 according to the presentdisclosure, when the mobile terminal 100 is coupled to the case 200, themobile terminal 100 can sense a resistance corresponding to the seconddisplay 250 (510).

Specifically, when the connection port of the mobile terminal 100 isconnected to the connector provided on one side of the case 200, themobile terminal 100 may recognize a plurality of resistances providedwith the connector to determine whether to supply an operating currentto the second display 250.

When the plurality of resistances is recognized, an operating current issupplied from the mobile terminal 100 to the second display 250 throughthe connector, and the second display 250 can maintain an operation inthe inactive state (520).

Specifically, when the plurality of resistances is recognized, themobile terminal 100 operates in a host mode to supply the operatingcurrent to the connector in a downstream manner. That is, the connectionport of the mobile terminal 100 is switched to be a downstream facingport (DFP) to supply an operating current to the contact pin. Forexample, an operating current is supplied in a form of Vconn powerthrough the CC1 pin among the contact pins of the connector.

In this case, the second display 250 on the case 200 side operates in adevice mode to receive the operating current in an upstream manner. Thatis, the connector of the case 200 is operated as an upstream facing port(UFP).

As described above, the operating current supplied through the CC1 pinof the connector is supplied to the circuit board 244 or the likes ofthe second display 250 through the wiring portion 242 coupled to thefirst and second flexible printed circuit boards 247, 248 as describedabove. In addition, an operating current is also supplied to the powersupply unit 291 of the second display 250.

Meanwhile, as described above, the electronic device 300 may be eitherin an open state and a closed state, and when a transition from theclosed state to the open state is detected, the first display 151provided in the mobile terminal may maintain the operation in the activestate (530). At this time, the transition from the closed state to theopen state may be detected by recognizing a sensing value of theilluminance sensor provided on the front side of the mobile terminal100, for example.

Alternatively, even when the connection port of the mobile terminal 100is connected to the connector provided on one side of the case 200, andan input is applied to the first display 151 or the user input unit 123in a state where the electronic device 300 is in the open state, thefirst display 151 may maintain the operation in the active state.

As described above, when a predetermined touch input is applied to thefirst display 151 while the second display 250 is maintained in theinactive state, the mobile terminal detects such a touch (540) anddetermines a touch signal corresponding to the detected touch (550).

When the touch signal is for switching the second display 250 intoactive state as a result of the determination, the controller of themobile terminal may output a control signal for switching the seconddisplay 250 into the active state (560).

As another example, when a transition of the electronic device 300 fromthe closed state to the open state is detected and accordingly the firstdisplay 151 provided in the mobile terminal is operated in active state,the second display 250 may be operated in a state switched from inactivestate to active state after a predetermined time (e.g., 0.5 second to 1second) has elapsed. That is, a screen of the second display 250 may beturned on. after a predetermined time has elapsed after a screen of thefirst display 151 was turned on.

In this case, the above-described steps 540 and 550 are omitted, a stepof detecting whether the electronic device 300 is switched from theclosed state to the open state may be added before performing the stepof operating the first display 151 in active state (530).

Meanwhile, as another example, although not illustrated, when a presettouch input is applied to the second display 250 while the seconddisplay 250 is operating in inactive state, a control signal to switchthe second display 250 to active state may be transmitted from themobile terminal 100.

In this case, signal processing corresponding to the touch signal sensedby the second display 250 may be performed by the first and secondsignal processors 181, 281 as described above.

Specifically, the mobile terminal 100 performs wired communication in aninitial state by using the first USB communication, then when the mobileterminal 100 is connected to the connector of the case 200 andrecognizes the plurality of resistances Ra, Rd corresponding to thesecond display 250, the mobile terminal 100 controls the operationcorresponding to the touch by using the second USB communicationconnected only with the B side contact pins (e.g., B6 and B7).

Even when the second display 250 is deactivated, the touch sensor (ortouch panel 252) provided in the second display 250 is operated inactive state to sense a touch applied to the second display 250.

The sensed touch may be I2C converted through the first and secondsignal processors 181, 281. In addition, the sensed touch is transferredfrom the second display 250 to the mobile terminal 100 via the circuitboard 244 provided on the second body of the case, the wiring portion242 coupled with the first and second flexible printed circuit boards247, 248, and the connector, that is, the second wired communicationunit 243.

Then, the mobile terminal 100 determines the touch signal transmittedfrom the second display 250 as described above, and determines whetherthe touch signal corresponds to a preset touch input. Here, the presettouch input may refer to, for example, applying a plurality of tabs onthe second display 250 in inactive state.

When the touch signal is determined to correspond to the preset touchinput, the mobile terminal 100 may perform the process of step 560described above. That is, a control signal to switch the second display250 to active state is output by the controller of the mobile terminal100 and may be transmitted to the second display 250.

Thereafter, the mobile terminal 100 may transmit an image signalcorresponding to a screen to be displayed on the second display 250 viaUSB communication (570).

To this end, the first and second wired communication units 161, 243transmit, for example, the DP type image signal through a USB SS PHYpin. Specifically, the DP type image signal passes through the wiringportion 242 coupled with the first and second flexible printed circuitboards 247, 248 after passing through the first wired communication unit161 and the second wired communication unit 243 interconnected to eachother, is converted to MIPI format by the data converter 282 of thesecond display 250, and is transferred to the second display 250.

Next, the second display 250 may display a screen corresponding to thereceived signal, that is, an image signal converted to MIPI format(580). Here, a type of the screen displayed on the second display 250 isnot particularly limited. For example, it may be a home screen pagedifferent from a home screen page displayed on the first display 151 oran execution screen of a preset application.

Hereinafter, a flow process of an operation according to the presentdisclosure as described above will be described in detail with referenceto FIGS. 6A to 6D in connection with the allocation of a memory stack.

Firstly, FIG. 6A illustrates a state in which the connection port of themobile terminal is connected to the connector of the case, the firstdisplay 151 maintains the active state while the electronic device 300is open, and the second display 250 on the case 200 side is in inactivestate in the electronic device 300 according to the present disclosure.

When the connection port of the mobile terminal is connected to theconnector of the case to sense a plurality of resistances correspondingto the second display 250, an operating current is supplied to thesecond display 250 and the circuit board 244 of the case through thefirst wired communication unit 161, the second wired communication unit243, and the wiring portion 242.

First screen information may be displayed on the activated first display151. Here, a type of the first screen information is not limited. Forexample, the first screen information may be a first home screen page601 as illustrated in FIG. 6A, and in other examples, the first screeninformation may be changed in various ways such as an execution screenof a specific application, a web page, a setting screen, etc. accordingto a setting or a selection of a user.

With respect to the first home screen page 601 being displayed on thefirst display 151 in active state, a main home stack 610 for the firstdisplay 151 may be allocated in a memory 600 of the mobile terminal 100,as illustrated in (a) of FIG. 6D. In addition, tasks related to thedisplaying of the first home screen page 601 may be stacked on theallocated main home stack 610.

Here, the stacking may be one of structures that stacks (PoP) data. Astructure of stacking data may be of a stack type and a queue type. Thestack has a data structure of first-in last-out, and the queue has adata structure of first-in first-out.

In the present disclosure, stacks for the first display 151 and thesecond display 250 are separately allocated and removed depending onwhether they are activated.

In the open state, the second display 250 in inactive state may beswitched to active state when a predetermined time has elapsed after thefirst display 151 is operated in active state as illustrated in (a) ofFIG. 6B, or when a predetermined touch input is applied to the firstdisplay 151, for example, to a specific icon as illustrated in (b) ofFIG. 6B. Alternatively, although not illustrated, when a touch input isapplied to the second display 250, the second display 250 may also beswitched to active state.

First, referring to (a) of FIG. 6B, when the electronic device 300 isdetected to be switched from the closed state to the open state while anoperating current is supplied to the second display 250 according tosensing of a resistance related to the second display 250, and the firstdisplay 151 is operated in active state, a control signal to switch thesecond display 250 to active state may be transmitted to the seconddisplay 250. At this time, the control signal is generated by the mobileterminal 100, and transmitted to the circuit board 244 coupled with thesecond display 250 via the first and second wired communication units161, 243, and the wiring portion 242.

In addition, the image signal corresponding to the screen to bedisplayed on the second display 250 is also transmitted to the circuitboard 244 coupled with the second display 250 via the first and secondwired communication units 161, 243, and the wiring portion 242, togetherwith the control signal or sequentially after the transmission of thecontrol signal. Here, the image signal is transmitted in DP format,converted into MIPI format that can be displayed on the second display250 by the data converter 282, and provided to the second display 250.

Meanwhile, a condition of the open state for operating the first display151 in active state and a condition of the open state for operating thesecond display 250 in active state may be different. For example, theopen state in which the second display 250 is operated in active statemay be limited to a state in which an angle between the first and secondbodies 210, 220 is greater than that in the case of the first display151.

For example, the first display 151 may be switched to active state whenthe electronic device 300 is detected to be in open state, and thesecond display 250 may be switched to active state when rear surfaces ofthe first and second bodies 210, 220 are relatively rotated to be closerto each other after the first display 151 is switched to active state.

Here, in the open state, the angle between the first display 151 and thesecond display 250 to switch the second display 250 to active state maybe preset or changed by a user.

In addition, a setting of whether to switch the second display 250 toactive state sequentially after the first display 151 is switched toactive state may be on/off based on user input.

Next, referring to (b) of FIG. 6B, when a preset touch input (e.g.,touch input applied to a predetermined icon 603 or multi-finger touchgesture) is applied to the first display 151 while an operating currentis supplied to the second display 250, an action corresponding to thetouch input, that is, a control signal to switch the second display tothe active state may be transmitted to the mobile terminal 100 via USBHID communication.

At this time, since the control signal is a signal related to the touch,the control signal is transmitted to the mobile terminal 100 through thefirst and second signal processors 181, 281 using USB HID communication.

Meanwhile, referring to FIG. 6C, when a preset touch input (e.g., touchinput applied to the predetermined icon 603 or multi-finger touchgesture) is again applied to the first display 151 while the seconddisplay 250 is operated in active state, the second display 250 isswitched to inactive state.

To this end, a control signal corresponding to the touch signal of thepreset touch input and to switch the second display 250 into inactivestate is transmitted from the mobile terminal to the display 250 usingUSB communication. Accordingly, the second display 250 is switched backto the inactive state, and the transmission of the image signal from themobile terminal is stopped.

Meanwhile, as another example, when a preset touch input (e.g., doubletap) is applied to the second display while an operating current issupplied to the second display 250, a touch signal corresponding to thepreset touch input is transmitted to the mobile terminal 100 via thecircuit board 244 connected to the touch panel, the wiring portion 242coupled with the first and second flexible printed circuit boards 247,248, and the first and second signal processors 181, 281 using USB HIDcommunication.

Then, the controller 180 of the mobile terminal 100 transmits a controlsignal to activate the second display 250 to the circuit board coupledwith the second screen 251 and the second display 250 via the connectorconnected with the connection port of the mobile terminal, based on thetransmitted touch signal. At this time, since the control signal is asignal related to the touch, the control signal is transmitted to themobile terminal 100 through the first and second signal processors 181,281 using USB HID communication.

Here, the signal related to the touch is initially transmitted andreceived through USB 2.0 communication (hereinafter, referred to as‘first USB communication’), then transmitted and received through theswitched USB HID communication (hereinafter, referred to as ‘second USBcommunication’) when the mobile terminal 100 is operated in the hostmode (i.e., when resistances Ra, Rd are sensed).

In addition, the control signal is transmitted to the second display 250through the first wired communication unit 161, the second wiredcommunication unit 243, and the wiring unit 240 in AUX format. Thecontrol signal in the AUX format is transmitted to the second display250 via the second data converter 282.

As described above, when the second display 250 is switched to activestate, second screen information, for example, a second home screen pagemay be displayed on the second display 250.

To this end, the image signal corresponding to the screen to bedisplayed on the second display 250 is transmitted to the circuit board244 coupled with the second display 250 via the first and second wiredcommunication units 161, 243, and the wiring portion 242. Here, theimage signal is transmitted in DP format, converted into MIPI formatthat can be displayed on the second display 250 by the data converter282, and provided to the second display 250.

Meanwhile, a control signal to switch the second display 250 to activestate and the image signal corresponding to the screen to be displayedon the second display 250 are transmitted through different contact pinsin the first and second wired communication units 161, 243.

With respect to the first home screen page 601 being displayed on theactive first display 151, referring to (b) of FIG. 6D, a sub home stack620 for the second display 250 in addition to the main home stack 610for the first display 151 is allocated in the memory 600.

At this time, tasks related to the DP type image signal transmitted tothe circuit board 244 coupled with the second display 250 via the firstwired communication unit 161, the second wired communication unit 243,and the wiring portion 242 is stacked on the sub home stack 620.

The main home stack 610 and the sub home stack 620 are independentlycontrolled, and when a task corresponding to a specific application isexecuted on the second display 250, a sub-app stack 630 is additionallyallocated to the memory and the task corresponding to the specificapplication is stacked as illustrated in (c) of FIG. 6D.

The controller 180 of the mobile terminal may transmit the DP type imagesignal corresponding to the task stacked on the sub-app stack 630 to thesecond display 250 via the circuit board 244 coupled with the seconddisplay 250 via the first wired communication unit 161, the second wiredcommunication unit 243, and the wiring portion 242.

Here, the image signal in the DP format is converted into MIPI format bythe second data converter 282 so that it can be displayed on the seconddisplay 250, and then transmitted to the second display 250.Accordingly, screen information corresponding to the task stacked on thesub-app stack 630 is displayed on the second display 250.

As described above, in the electronic device 300 according to thepresent disclosure, a control signal transmitted to the circuit boardconnected to the second display 250 and an image signal corresponding toscreen information to be displayed on the second display 250 aretransmitted through different contact pins.

Meanwhile, as illustrated in FIG. 6C, when the second display 250 isdeactivated, the sub-stacks (e.g., sub home stack and sub-app stack)allocated to the memory are deleted from the memory.

Meanwhile, although not illustrated, when the connection port of themobile terminal and the connector of the case are disconnected so thatthe wired communication path of the first and second wired communicationunits 161, 243 is released while the second display 250 is activated,supply of operation current is cut off, and the second display 250 isswitched to inactive state.

Here, when the connection port of the mobile terminal and the connectorof the case are connected again, the second display 250 is switched backto active state, and the screen information displayed on the seconddisplay 250 before the connection is cut off may be output again.

In the above, for convenience of explanation, it has been described thatthe sizes of the first display 151 and the second display 250 are thesame, but the embodiment is not limited thereto.

In the electronic device 300 according to the present disclosure, anapplication (e.g., a photo application, etc.) installed in the mobileterminal may be executed. In this case, an application screen (e.g., aphoto to be displayed) may be displayed by integrating the first display151 and the second display 250 as a single display.

Hereinafter, with reference to FIGS. 7 and 8, a method for causing thecontroller 180 to generate an integrated display 310 including the firstdisplay 151 and the second display 250 according to the embodiment willbe described in detail.

FIG. 7 is a flowchart showing a method for causing a controller togenerate an integrated display according to an embodiment.

FIG. 8A is a view showing a first display and a second display prior togenerating an integrated display.

FIG. 8B is a view showing an integrated display.

As described above, a predetermined application is executed in responseto a touch of the first display 151 and/or the second display 250.Referring to FIG. 8A, a photo viewer application (hereinafter, referredto as an application) supporting display extension is executed.

In step S10, the controller 180 determines whether the application is anapplication supporting display extension. When the application is anapplication supporting display extension, the controller 180 may displayan integration dot D on the application screen.

Specifically, referring to FIG. 8A, when the application is executed,the controller 180 controls the first display 151 such that a firstphoto p1 is displayed on the first display 151 and the integration dot Dis displayed on the first display 151. The first photo p1 may be a photodesired by the user to be displayed through an extended display.

In this case, a second picture p2, which is a photo different from thefirst photo, may be displayed on the second display 250, but theembodiment is not limited thereto, and a screen different from the firstphoto, such as an application executed before the picture viewerapplication is executed, may be displayed.

The user may touch the integration dot D to enter an integrated displaymode. Such a touch may be a swipe or a touch and drag in a direction ofthe second display 250, but the embodiment is not limited thereto.

In step S20, the controller 180 calculates a size of the integrateddisplay 310 to define the integrated display 310 (see FIG. 8B) includingthe first display 151 and the second display 250 in the integrateddisplay mode.

For example, when the screen resolutions of the first display 151 andthe second display 250 are different from each other, the size of theintegrated display 310 is calculated based on a display having a lowerresolution between the two displays.

Hereinafter, it is assumed that a resolution of the first display 151 islower than that of the second display 250.

Specifically, the controller 180 adds a width of the first display 151to a width of the second display 250 to calculate a width of theintegrated display 310.

The controller 180 may calculate the width of the integrated display 310using Equation 1 below.

Width=Display 1 width+Display 2 width  [Equation 1]

Here, “Display 1 width” is a width of the first display 151 included inspecifications unique to the first display 151, and “Display 2 width” isa width of the second display 250 included in specific specificationsunique to the second display 250.

Furthermore, the controller 180 calculates a smaller one between thewidth of the first display 151 and the width of the second display 250as a height of the integrated display 310.

The controller 180 may calculate the height of the integrated display310 using Equation 2 below.

height=min(Display 1 width,Display 2 width)  [Equation 2]

In step S30, the controller 180 may send a size of the integrateddisplay 310 to the application being executed. The application changes adisplay layout (hereinafter, referred to as a layout) of the applicationto correspond to the size of the integrated display 310.

The application includes a plurality of layouts corresponding to aplurality of resolutions, and the application may determine a layoutaccording to a resolution corresponding to the size of the integrateddisplay 310, but the embodiment is not limited thereto.

In step S40, the controller 180 changes a size of the first display 151according to the calculated size of the integrated display 310.

In step S50, the controller 180 changes a size of the second display 250based on the size of the first display 151. That is, a hardware settingvalue of the second display 250 is changed to be the same as that of thefirst display 151.

Specifically, the controller 180 changes a flag of the second display250 to be the same as that of the first display 151. The flag denotes asetting value unique to the display such as resolution, but theembodiment is not limited thereto.

In step S60, the controller 180 overlaps the first photo to display theoverlapped first photo according to the size of the integrated display310.

In the present specification, overlapping denotes causing the controller180 to divide the application screen, set part of the separatelydisplayed screen as an overlapping area, and display the overlappingarea on both the first display 151 and the second display 250.Hereinafter, overlapping will be described in detail.

Referring to FIG. 8B, the controller 180 rotates the first photoclockwise (or counterclockwise) to correspond to the width of theintegrated display 310 and the height of the integrated display 310 by afirst angle (for example, 90°), and then separately displays the firstphoto p1.

Specifically, the controller 180 may divide the first photo p1 into twosub-photos based on a predetermined dividing line DL. The controller 180may set an area of the first photo p1 corresponding to a referencenumber of pixels (e.g., 5 pixels) from the dividing line DL in a firstdirection (e.g., left in FIG. 8B) as an overlapping area Ov.

The controller 180 may divide the first photo p1 into a first sub-photop11 and a second sub-photo p12 such that the overlapping area Ov isincluded in a first sub-photo p11 and a second sub-photo p11.

That is, the controller 180 sets part of the first sub-photo p11 as theoverlapping area Ov. The controller 180 generates the first sub-photop11 and the second sub-photo p12 such that the overlapping area Ov isincluded in both the first sub-photo p11 and the second sub-photo p12.

Accordingly, a text or photo clipping phenomenon occurring due to theconnection portion 230 may be minimized by the overlapping area Ov.

In the above, for convenience of explanation, it has been described thatthe controller 180 sets the overlapping area Ov by using part of thefirst sub-photo p11, but the embodiment is not limited thereto. That is,the controller 180 may set an area of the first photo p1 correspondingto the reference number of pixels from the dividing line DL in a seconddirection (e.g., right in FIG. 8B) based on the dividing line DL as theoverlapping area Ov.

That is, the controller 180 sets part of the second sub-photo p12 as theoverlapping area Ov. The controller 180 generates the first sub-photop11 and the second sub-photo p12 such that the overlapping area Ov isincluded in both the first sub-photo p11 and the second sub-photo p12.

In addition, although it has been described that the dividing line DLaccurately bisects the first photo p1 so that the sizes of the firstsub-photo p11 and the second sub-photo p12 are the same, the embodimentis not limited thereto, and the controller 180 may set the dividing lineDL such that the sizes of the first sub-photo p11 and the secondsub-photo p12 are different from each other.

The controller 180 controls the first display 151 such that the firstphoto p1 is displayed on the integrated display 310 and the integrationdot D is displayed on the first display 151.

The user may touch the integration dot D to end the integrated displaymode. Such a touch may be a swipe or a touch and drag in a direction ofthe second display 250, but the embodiment is not limited thereto.

Furthermore, although it has been described that the resolutions of thefirst display 151 and the second display 250 are the same, theembodiment is not limited thereto, and the resolutions of the firstdisplay 151 and the second display 250 may be different from each other.

In addition, although it has been described that the electronic device300 includes two displays 151, 250, the embodiment is not limitedthereto, and the electronic device 300 may include three or moredisplays.

Hereinafter, a method of causing the controller 180 to generate theintegrated display 310 in a landscape mode and a portrait mode accordingto an embodiment will be described in detail with reference to FIGS. 9Aand 9B.

As described with reference to FIG. 8A, these landscape and portraitmodes may be modes subsequent to executing an application installed inthe mobile terminal and then entering the integrated display modeaccording to a touch to the integration dot D, but the embodiment is notlimited thereto.

Furthermore, the landscape and portrait modes may be switched to eachother according to the rotation of the electronic device 300, but theembodiment is not limited thereto.

FIG. 9A is a screen in a landscape mode of the integrated displayaccording to an embodiment.

There is a difference between FIGS. 8A and 8B and FIGS. 9A and 9B inthat the application of FIGS. 8A and 8B is a photo viewer applicationthat supports display extension, but the application executed in FIGS.9A and 9B is a web application that supports display extension.

Hereinafter, in FIGS. 8A and 8B and FIGS. 9A and 9B, the same referencenumerals refer to the same components, and their redundant descriptionwill be omitted. In addition, a detailed method of setting theoverlapping area Ov is the same as that described with reference to FIG.8B, and thus will be omitted.

Referring to FIG. 9A, in the landscape mode, the controller 180 performsoverlapping on a web browser screen to generate a first sub-screen w11and a second sub-screen w12, and display them on the first display 151and the second display 250, respectively.

That is, the controller 180 may perform transverse overlapping on theweb browser screen, and then display the overlapping area Ov on each ofthe first sub-screen w11 and the second sub-screen w12.

FIG. 9B is a screen in a portrait mode in an integrated displayaccording to another embodiment.

Referring to FIG. 9A, in the portrait mode, the controller 180 performsoverlapping on a web browser screen to generate a first sub-screen w11and a second sub-screen w12, and display them on the first display 151and the second display 250, respectively.

The controller 180 may perform longitudinal overlapping on the webbrowser screen, and then display the overlapping area Ov on each of thefirst sub-screen w11 and the second sub-screen w12.

1. An electronic device comprising: a mobile terminal; and a case,wherein the mobile terminal comprises a terminal body coupled to thecase, a connection port provided on one side of the terminal body, acontroller, and a first display, wherein the case comprises a first bodyaccommodating the terminal body, a connector protruding toward an innerside of the first body to be inserted into the connection port, a seconddisplay, and a wiring portion configured to electrically connect thefirst body and the second body, wherein the controller is configured to:display a first image on the first display, control the first displayand the second display to provide an integrated display comprising thefirst display and the second display, divide the first image into afirst sub-image and a second sub-image, and display the first and secondsub-images on the integrated display comprising the first and seconddisplays, and wherein each of the first sub-image and the secondsub-image includes an overlapping area.
 2. The electronic device ofclaim 1, wherein the controller is further configured to: set apredetermined dividing line on the first image, set a portion of thefirst sub-image as the overlapping area based on the predetermineddividing line, and display the overlapping area in each of the first andsecond sub-images based on the predetermined dividing line.
 3. Theelectronic device of claim 2, wherein the controller is configured to:set the overlapping area to extend in a first direction based on thepredetermined dividing line, wherein the overlapping area in each of thefirst and second sub-images includes a same content.
 4. The electronicdevice of claim 3, wherein the controller is configured to: display thefirst image on the first display and a different image on the seconddisplay, the first image corresponding to an application executed in theelectronic device, display an integration dot in a predetermined area ofthe first display while the second display displays the different image,and in response to receiving a first touch input corresponding to theintegration dot displayed on the first display, activate the integrateddisplay and display the first and second sub-images across the first andsecond displays.
 5. The electronic device of claim 4, wherein thecontroller is further configured to: add a first width of the firstdisplay and a second width of the second display to calculate a totalwidth of the first and second displays, and determine a smaller widththat is less than the total width of the first and second displays andset the smaller width as a height of the integrated display fordetermining a size of the integrated display.
 6. The electronic deviceof claim 5, wherein the controller is further configured to: display thefirst sub-image and the second sub-image based on a layout of theapplication, and change the layout according to the size of theintegrated display.
 7. The electronic device of claim 6, wherein thecontroller is further configured to: control the first and seconddisplay to have a same size or same resolution.
 8. The electronic deviceof claim 7, wherein the controller is further configured to: change flagof the second display to be same as a flag set for the first display. 9.The electronic device of claim 4, wherein the controller is furtherconfigured to: in response to receiving a second touch inputcorresponding to the integration dot while the first image is displayedacross the integrated display including the first and second displays,deactivate the integrated display by no longer displaying the firstimage across the integrated display including the first and seconddisplays.
 10. The electronic device of claim 9, wherein the first touchinput and the second touch input include at least one of a swipe or atouch and drag in a direction toward the second display.
 11. A method ofcontrolling a mobile device including a first display and a seconddisplay, the method comprising: displaying a first image on the firstdisplay of the mobile device; controlling, by a controller in the mobiledevice, the first display and the second display to provide anintegrated display comprising the first display and the second display;dividing, by the controller, the first image into a first sub-image anda second sub-image; and displaying the first and second sub-imagesacross the first and second displays to form an integrated display,wherein each of the first sub-image and the second sub-image includes anoverlapping area.
 12. The method of claim 11, further comprising:setting, by the controller, a predetermined dividing line on the firstimage; setting, by the controller, a portion of the first sub-image asthe overlapping area based on the predetermined dividing line; anddisplaying the overlapping area in each of the first and secondsub-images based the predetermined dividing line.
 13. The method ofclaim 12, further comprising: setting, by the controller, theoverlapping area to extend in a first direction based on thepredetermined dividing line, wherein the overlapping area in each of thefirst and second sub-images includes a same content.
 14. The method ofclaim 13, further comprising: displaying the first image on the firstdisplay and a different image on the second display, the first imagecorresponding to an application executed in the electronic device;displaying an integration dot in a predetermined area of the firstdisplay while the second display is displaying the different image; andin response to receiving a first touch input corresponding to theintegration dot displayed on the first display, activating, by thecontroller, the integrated display and displaying the first and secondsub-images across the first and second displays.
 15. The method of claim14, further comprising: adding, by the controller, a first width of thefirst display and a second width of the second display to calculate atotal width of the first and second displays; and determining, by thecontroller, a smaller width that is less than the total width of thefirst and second displays and setting the smaller width as a height ofthe integrated display for determining a size of the integrated display.16. The method of claim 15, further comprising: displaying the firstsub-image and the second sub-image based on a layout of the application;and changing, by the controller, the layout according to the size of theintegrated display.
 17. The method of claim 16, further comprising:controlling, by the controller, the first and second displays to have asame size or same resolution.
 18. The method of claim 17, furthercomprising: changing, by the controller, a flag of the second display tobe same as a flag set for the first display.
 19. The method of claim 14,further comprising: in response to receiving a second touch inputcorresponding to the integration dot while the first image is displayedacross the integrated display including the first and second displays,deactivating the integrated display by no longer displaying the firstimage across the integrated display including the first and seconddisplays.
 20. The method of claim 19, wherein the first touch input andthe second touch input include at least one of a swipe or a touch anddrag in a direction toward the second display.